text: // Lean compiler output
  // Module: Lean.Elab.PreDefinition.Structural.Eqns
  // Imports: Init Lean.Meta.Eqns Lean.Meta.Tactic.Split Lean.Meta.Tactic.Apply Lean.Elab.PreDefinition.Basic Lean.Elab.PreDefinition.Eqns Lean.Elab.PreDefinition.Structural.Basic
  #include <lean/lean.h>
  #if defined(__clang__)
  #pragma clang diagnostic ignored "-Wunused-parameter"
  #pragma clang diagnostic ignored "-Wunused-label"
  #elif defined(__GNUC__) && !defined(__CLANG__)
  #pragma GCC diagnostic ignored "-Wunused-parameter"
  #pragma GCC diagnostic ignored "-Wunused-label"
  #pragma GCC diagnostic ignored "-Wunused-but-set-variable"
  #endif
  #ifdef __cplusplus
  extern "C" {
  #endif
  LEAN_EXPORT lean_object* l_Lean_Elab_deltaLHS(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_Meta_replaceTargetDefEq(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  size_t lean_usize_add(size_t, size_t);
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__8;
  lean_object* l_Lean_Expr_mvarId_x21(lean_object*);
  LEAN_EXPORT lean_object* l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__6;
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_eqnInfoExt;
  lean_object* l_Lean_registerTraceClass(lean_object*, lean_object*);
  lean_object* l_Lean_stringToMessageData(lean_object*);
  static uint32_t l_Lean_Elab_Structural_eqnInfoExt___elambda__4___rarg___closed__1;
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___lambda__3___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* lean_mk_empty_array_with_capacity(lean_object*);
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__3;
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_eqnInfoExt___elambda__1(lean_object*);
  extern lean_object* l_Lean_Meta_tactic_hygienic;
  lean_object* l_Lean_throwError___at_Lean_Meta_setInlineAttribute___spec__1(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* lean_name_mk_string(lean_object*, lean_object*);
  uint8_t lean_usize_dec_eq(size_t, size_t);
  lean_object* lean_array_uget(lean_object*, size_t);
  uint64_t lean_uint64_of_nat(lean_object*);
  static lean_object* l_Lean_Elab_deltaLHS___lambda__2___closed__7;
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_eqnInfoExt___elambda__3___boxed(lean_object*, lean_object*);
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__1;
  static lean_object* l_Lean_Elab_Structural_eqnInfoExt___closed__4;
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__4;
  lean_object* l_Lean_mkBaseNameFor(lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_EnvExtensionInterfaceUnsafe_imp___elambda__2___rarg(lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_eqnInfoExt___elambda__4(lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___lambda__3(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_instInhabitedEqnInfo;
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__4;
  lean_object* lean_st_ref_get(lean_object*, lean_object*);
  extern lean_object* l_Lean_instHashableName;
  static lean_object* l_Lean_Elab_deltaLHS___lambda__2___closed__10;
  uint8_t lean_name_eq(lean_object*, lean_object*);
  lean_object* l_Lean_Expr_appFn_x21(lean_object*);
  static lean_object* l_Lean_Elab_Structural_mkEqns___lambda__1___closed__1;
  lean_object* lean_array_push(lean_object*, lean_object*);
  lean_object* lean_array_get_size(lean_object*);
  static lean_object* l_Lean_Elab_Structural_eqnInfoExt___elambda__4___rarg___closed__2;
  lean_object* l_Lean_Expr_appArg_x21(lean_object*);
  static lean_object* l_Lean_Elab_Structural_mkEqns___closed__1;
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__5;
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_registerEqnsInfo___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* lean_nat_add(lean_object*, lean_object*);
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__2;
  lean_object* l_Lean_mkAppN(lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___lambda__1(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_deltaRHS_x3f___lambda__2(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_MapDeclarationExtension_find_x3f___rarg(lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_whnfReducibleLHS_x3f(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  extern lean_object* l_Lean_Elab_Eqns_eqnsExt;
  LEAN_EXPORT lean_object* l_Array_foldlMUnsafe_fold___at___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___spec__1(lean_object*, lean_object*, size_t, size_t, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_getEqnsFor_x3f(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_Elab_Eqns_simpMatch_x3f(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_MapDeclarationExtension_insert___rarg(lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_eqnInfoExt___elambda__4___rarg(lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_getEqnsFor_x3f___lambda__1(lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_eqnInfoExt___elambda__2(lean_object*);
  uint8_t lean_nat_dec_eq(lean_object*, lean_object*);
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__6;
  lean_object* l_Lean_Elab_Eqns_simpIf_x3f(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_Meta_applyRefl(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___lambda__1___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_tryContradiction(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* lean_st_ref_take(lean_object*, lean_object*);
  static lean_object* l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___lambda__1___closed__1;
  static lean_object* l_Lean_Elab_deltaRHS_x3f___lambda__2___closed__1;
  lean_object* lean_nat_sub(lean_object*, lean_object*);
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___closed__2;
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___closed__1;
  lean_object* l_Lean_addTrace___at_Lean_Meta_processPostponed_loop___spec__1(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* lean_array_get(lean_object*, lean_object*, lean_object*);
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__9;
  static lean_object* l_Lean_Elab_Structural_eqnInfoExt___closed__2;
  lean_object* lean_name_append_index_after(lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_deltaRHS_x3f(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_mkMapDeclarationExtension___rarg(lean_object*, lean_object*, lean_object*);
  static lean_object* l_Lean_Elab_Structural_eqnInfoExt___closed__1;
  static lean_object* l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1787____closed__1;
  static lean_object* l_Lean_Elab_deltaRHS_x3f___lambda__2___closed__2;
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___lambda__1___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_Meta_getMVarType_x27(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  static lean_object* l_Lean_Elab_deltaLHS___lambda__2___closed__11;
  lean_object* l_Lean_Meta_intros(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  uint8_t l_Lean_Expr_isAppOfArity(lean_object*, lean_object*, lean_object*);
  static lean_object* l_Lean_Elab_Structural_instInhabitedEqnInfo___closed__3;
  extern lean_object* l_Lean_instInhabitedExpr;
  static lean_object* l_Lean_Elab_Structural_eqnInfoExt___closed__3;
  lean_object* l_Lean_Meta_contradiction(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__5;
  static uint64_t l_Lean_Elab_Structural_instInhabitedEqnInfo___closed__1;
  lean_object* l_Lean_Expr_consumeMData(lean_object*);
  lean_object* l_Std_PersistentHashMap_insert___rarg(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  size_t lean_usize_of_nat(lean_object*);
  static lean_object* l_Lean_Elab_Structural_instInhabitedEqnInfo___closed__2;
  static lean_object* l_Lean_Elab_Structural_eqnInfoExt___closed__7;
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__7;
  lean_object* l_Lean_Meta_delta_x3f(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_Meta_withMVarContext___at___private_Lean_Meta_SynthInstance_0__Lean_Meta_synthPendingImp___spec__1___rarg(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_deltaLHS___lambda__2(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* lean_expr_update_proj(lean_object*, lean_object*);
  static lean_object* l_Lean_Elab_Structural_eqnInfoExt___closed__6;
  LEAN_EXPORT uint8_t l_Lean_Elab_deltaRHS_x3f___lambda__1(lean_object*, lean_object*);
  static lean_object* l_Lean_Elab_deltaLHS___lambda__2___closed__9;
  lean_object* l_Lean_Meta_registerGetEqnsFn(lean_object*, lean_object*);
  lean_object* l_Lean_Meta_lambdaTelescope___at_Lean_Meta_MatcherApp_addArg___spec__2___rarg(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_EnvExtensionInterfaceUnsafe_instInhabitedExt___lambda__1(lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_whnfReducibleLHS_x3f___lambda__1(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_Meta_throwTacticEx___rarg(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  extern lean_object* l_Lean_Meta_smartUnfolding;
  static lean_object* l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___lambda__1___closed__2;
  LEAN_EXPORT lean_object* l_Array_foldlMUnsafe_fold___at___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___spec__1___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  static lean_object* l_Lean_Elab_deltaLHS___lambda__2___closed__1;
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_mkEqns___lambda__1(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  static lean_object* l_Lean_Elab_deltaLHS___lambda__2___closed__8;
  lean_object* l_Lean_Meta_whnfR(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  uint8_t lean_expr_eqv(lean_object*, lean_object*);
  static lean_object* l_Lean_Elab_deltaLHS___lambda__2___closed__4;
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_eqnInfoExt___elambda__3(lean_object*, lean_object*);
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__4;
  uint8_t lean_nat_dec_le(lean_object*, lean_object*);
  lean_object* l_Lean_Name_append(lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_eqnInfoExt___elambda__4___boxed(lean_object*, lean_object*);
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__3;
  static lean_object* l_Lean_Elab_tryURefl___closed__2;
  LEAN_EXPORT lean_object* l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  static lean_object* l_Lean_Elab_tryURefl___closed__1;
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_whnfAux(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_eqnInfoExt___elambda__1___boxed(lean_object*);
  static lean_object* l_Lean_Elab_deltaLHS___lambda__2___closed__2;
  lean_object* l_List_mapTRAux___at_Lean_mkConstWithLevelParams___spec__1(lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_eqnInfoExt___elambda__2___boxed(lean_object*);
  LEAN_EXPORT uint8_t l_Lean_Elab_deltaLHS___lambda__1(lean_object*);
  lean_object* lean_st_ref_set(lean_object*, lean_object*, lean_object*);
  extern lean_object* l_Lean_Elab_Eqns_instInhabitedEqnsExtState;
  static lean_object* l_Lean_Elab_tryContradiction___closed__1;
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___lambda__2(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_Elab_Eqns_mkEqnTypes(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_Meta_withNewMCtxDepth___at___private_Lean_Meta_Instances_0__Lean_Meta_mkInstanceKey___spec__1___rarg(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_Meta_instantiateMVars(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__10;
  static lean_object* l_Lean_Elab_tryURefl___closed__3;
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___boxed(lean_object*, lean_object*);
  static lean_object* l_Lean_Elab_deltaLHS___lambda__2___closed__6;
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__1;
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__2;
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__1;
  LEAN_EXPORT lean_object* l_Lean_Elab_deltaLHS___lambda__1___boxed(lean_object*);
  lean_object* l_Std_PersistentHashMap_find_x3f___rarg(lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_tryURefl(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_Meta_mkFreshExprSyntheticOpaqueMVar(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  static lean_object* l_Lean_Elab_whnfReducibleLHS_x3f___lambda__1___closed__2;
  lean_object* l_Lean_Meta_casesOnStuckLHS_x3f(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_Meta_mkEq(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  static lean_object* l_Lean_Elab_whnfReducibleLHS_x3f___lambda__1___closed__1;
  uint32_t lean_uint32_of_nat(lean_object*);
  lean_object* l_Lean_EnvExtensionInterfaceUnsafe_getState___rarg(lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_deltaRHS_x3f___lambda__1___boxed(lean_object*, lean_object*);
  lean_object* l_Lean_mkConst(lean_object*, lean_object*);
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__2;
  static lean_object* l_Lean_Elab_Structural_eqnInfoExt___closed__5;
  lean_object* l_Lean_addDecl___at_Lean_Meta_mkAuxLemma___spec__1(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___lambda__1(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_mkEqns(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  lean_object* l_Lean_Option_set___at_Lean_Meta_withPPInaccessibleNamesImp___spec__2(lean_object*, lean_object*, uint8_t);
  static lean_object* l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1627____closed__2;
  static lean_object* l_Lean_Elab_deltaLHS___lambda__2___closed__3;
  static lean_object* l_Lean_Elab_deltaLHS___lambda__2___closed__5;
  static lean_object* l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1627____closed__1;
  static lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__3;
  lean_object* l___private_Lean_Util_Trace_0__Lean_checkTraceOptionM___at___private_Lean_Meta_Basic_0__Lean_Meta_processPostponedStep___spec__13(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  uint8_t lean_nat_dec_lt(lean_object*, lean_object*);
  extern lean_object* l_Lean_Name_instBEqName;
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1787_(lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1627_(lean_object*);
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_registerEqnsInfo(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor(lean_object*, lean_object*);
  static lean_object* _init_l_Lean_Elab_tryURefl___closed__1() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("refl failed");
  return x_1;
  }
  }
  static lean_object* _init_l_Lean_Elab_tryURefl___closed__2() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; 
  x_1 = l_Lean_Elab_tryURefl___closed__1;
  x_2 = lean_alloc_ctor(2, 1, 0);
  lean_ctor_set(x_2, 0, x_1);
  return x_2;
  }
  }
  static lean_object* _init_l_Lean_Elab_tryURefl___closed__3() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; 
  x_1 = l_Lean_Elab_tryURefl___closed__2;
  x_2 = lean_alloc_ctor(0, 1, 0);
  lean_ctor_set(x_2, 0, x_1);
  return x_2;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_tryURefl(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6) {
  _start:
  {
  uint8_t x_7; 
  x_7 = !lean_is_exclusive(x_4);
  if (x_7 == 0)
  {
  lean_object* x_8; lean_object* x_9; uint8_t x_10; lean_object* x_11; lean_object* x_12; lean_object* x_13; 
  x_8 = lean_ctor_get(x_4, 0);
  x_9 = l_Lean_Meta_smartUnfolding;
  x_10 = 0;
  x_11 = l_Lean_Option_set___at_Lean_Meta_withPPInaccessibleNamesImp___spec__2(x_8, x_9, x_10);
  lean_ctor_set(x_4, 0, x_11);
  x_12 = l_Lean_Elab_tryURefl___closed__3;
  x_13 = l_Lean_Meta_applyRefl(x_1, x_12, x_2, x_3, x_4, x_5, x_6);
  if (lean_obj_tag(x_13) == 0)
  {
  uint8_t x_14; 
  x_14 = !lean_is_exclusive(x_13);
  if (x_14 == 0)
  {
  lean_object* x_15; uint8_t x_16; lean_object* x_17; 
  x_15 = lean_ctor_get(x_13, 0);
  lean_dec(x_15);
  x_16 = 1;
  x_17 = lean_box(x_16);
  lean_ctor_set(x_13, 0, x_17);
  return x_13;
  }
  else
  {
  lean_object* x_18; uint8_t x_19; lean_object* x_20; lean_object* x_21; 
  x_18 = lean_ctor_get(x_13, 1);
  lean_inc(x_18);
  lean_dec(x_13);
  x_19 = 1;
  x_20 = lean_box(x_19);
  x_21 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_21, 0, x_20);
  lean_ctor_set(x_21, 1, x_18);
  return x_21;
  }
  }
  else
  {
  uint8_t x_22; 
  x_22 = !lean_is_exclusive(x_13);
  if (x_22 == 0)
  {
  lean_object* x_23; lean_object* x_24; 
  x_23 = lean_ctor_get(x_13, 0);
  lean_dec(x_23);
  x_24 = lean_box(x_10);
  lean_ctor_set_tag(x_13, 0);
  lean_ctor_set(x_13, 0, x_24);
  return x_13;
  }
  else
  {
  lean_object* x_25; lean_object* x_26; lean_object* x_27; 
  x_25 = lean_ctor_get(x_13, 1);
  lean_inc(x_25);
  lean_dec(x_13);
  x_26 = lean_box(x_10);
  x_27 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_27, 0, x_26);
  lean_ctor_set(x_27, 1, x_25);
  return x_27;
  }
  }
  }
  else
  {
  lean_object* x_28; lean_object* x_29; lean_object* x_30; lean_object* x_31; lean_object* x_32; lean_object* x_33; lean_object* x_34; lean_object* x_35; lean_object* x_36; uint8_t x_37; lean_object* x_38; lean_object* x_39; lean_object* x_40; lean_object* x_41; 
  x_28 = lean_ctor_get(x_4, 0);
  x_29 = lean_ctor_get(x_4, 1);
  x_30 = lean_ctor_get(x_4, 2);
  x_31 = lean_ctor_get(x_4, 3);
  x_32 = lean_ctor_get(x_4, 4);
  x_33 = lean_ctor_get(x_4, 5);
  x_34 = lean_ctor_get(x_4, 6);
  x_35 = lean_ctor_get(x_4, 7);
  lean_inc(x_35);
  lean_inc(x_34);
  lean_inc(x_33);
  lean_inc(x_32);
  lean_inc(x_31);
  lean_inc(x_30);
  lean_inc(x_29);
  lean_inc(x_28);
  lean_dec(x_4);
  x_36 = l_Lean_Meta_smartUnfolding;
  x_37 = 0;
  x_38 = l_Lean_Option_set___at_Lean_Meta_withPPInaccessibleNamesImp___spec__2(x_28, x_36, x_37);
  x_39 = lean_alloc_ctor(0, 8, 0);
  lean_ctor_set(x_39, 0, x_38);
  lean_ctor_set(x_39, 1, x_29);
  lean_ctor_set(x_39, 2, x_30);
  lean_ctor_set(x_39, 3, x_31);
  lean_ctor_set(x_39, 4, x_32);
  lean_ctor_set(x_39, 5, x_33);
  lean_ctor_set(x_39, 6, x_34);
  lean_ctor_set(x_39, 7, x_35);
  x_40 = l_Lean_Elab_tryURefl___closed__3;
  x_41 = l_Lean_Meta_applyRefl(x_1, x_40, x_2, x_3, x_39, x_5, x_6);
  if (lean_obj_tag(x_41) == 0)
  {
  lean_object* x_42; lean_object* x_43; uint8_t x_44; lean_object* x_45; lean_object* x_46; 
  x_42 = lean_ctor_get(x_41, 1);
  lean_inc(x_42);
  if (lean_is_exclusive(x_41)) {
   lean_ctor_release(x_41, 0);
   lean_ctor_release(x_41, 1);
   x_43 = x_41;
  } else {
   lean_dec_ref(x_41);
   x_43 = lean_box(0);
  }
  x_44 = 1;
  x_45 = lean_box(x_44);
  if (lean_is_scalar(x_43)) {
   x_46 = lean_alloc_ctor(0, 2, 0);
  } else {
   x_46 = x_43;
  }
  lean_ctor_set(x_46, 0, x_45);
  lean_ctor_set(x_46, 1, x_42);
  return x_46;
  }
  else
  {
  lean_object* x_47; lean_object* x_48; lean_object* x_49; lean_object* x_50; 
  x_47 = lean_ctor_get(x_41, 1);
  lean_inc(x_47);
  if (lean_is_exclusive(x_41)) {
   lean_ctor_release(x_41, 0);
   lean_ctor_release(x_41, 1);
   x_48 = x_41;
  } else {
   lean_dec_ref(x_41);
   x_48 = lean_box(0);
  }
  x_49 = lean_box(x_37);
  if (lean_is_scalar(x_48)) {
   x_50 = lean_alloc_ctor(0, 2, 0);
  } else {
   x_50 = x_48;
   lean_ctor_set_tag(x_50, 0);
  }
  lean_ctor_set(x_50, 0, x_49);
  lean_ctor_set(x_50, 1, x_47);
  return x_50;
  }
  }
  }
  }
  LEAN_EXPORT uint8_t l_Lean_Elab_deltaLHS___lambda__1(lean_object* x_1) {
  _start:
  {
  uint8_t x_2; 
  x_2 = 1;
  return x_2;
  }
  }
  static lean_object* _init_l_Lean_Elab_deltaLHS___lambda__2___closed__1() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("Eq");
  return x_1;
  }
  }
  static lean_object* _init_l_Lean_Elab_deltaLHS___lambda__2___closed__2() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; lean_object* x_3; 
  x_1 = lean_box(0);
  x_2 = l_Lean_Elab_deltaLHS___lambda__2___closed__1;
  x_3 = lean_name_mk_string(x_1, x_2);
  return x_3;
  }
  }
  static lean_object* _init_l_Lean_Elab_deltaLHS___lambda__2___closed__3() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("deltaLHS");
  return x_1;
  }
  }
  static lean_object* _init_l_Lean_Elab_deltaLHS___lambda__2___closed__4() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; lean_object* x_3; 
  x_1 = lean_box(0);
  x_2 = l_Lean_Elab_deltaLHS___lambda__2___closed__3;
  x_3 = lean_name_mk_string(x_1, x_2);
  return x_3;
  }
  }
  static lean_object* _init_l_Lean_Elab_deltaLHS___lambda__2___closed__5() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("equality expected");
  return x_1;
  }
  }
  static lean_object* _init_l_Lean_Elab_deltaLHS___lambda__2___closed__6() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; 
  x_1 = l_Lean_Elab_deltaLHS___lambda__2___closed__5;
  x_2 = lean_alloc_ctor(2, 1, 0);
  lean_ctor_set(x_2, 0, x_1);
  return x_2;
  }
  }
  static lean_object* _init_l_Lean_Elab_deltaLHS___lambda__2___closed__7() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; 
  x_1 = l_Lean_Elab_deltaLHS___lambda__2___closed__6;
  x_2 = lean_alloc_ctor(0, 1, 0);
  lean_ctor_set(x_2, 0, x_1);
  return x_2;
  }
  }
  static lean_object* _init_l_Lean_Elab_deltaLHS___lambda__2___closed__8() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_alloc_closure((void*)(l_Lean_Elab_deltaLHS___lambda__1___boxed), 1, 0);
  return x_1;
  }
  }
  static lean_object* _init_l_Lean_Elab_deltaLHS___lambda__2___closed__9() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("failed to delta reduce lhs");
  return x_1;
  }
  }
  static lean_object* _init_l_Lean_Elab_deltaLHS___lambda__2___closed__10() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; 
  x_1 = l_Lean_Elab_deltaLHS___lambda__2___closed__9;
  x_2 = lean_alloc_ctor(2, 1, 0);
  lean_ctor_set(x_2, 0, x_1);
  return x_2;
  }
  }
  static lean_object* _init_l_Lean_Elab_deltaLHS___lambda__2___closed__11() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; 
  x_1 = l_Lean_Elab_deltaLHS___lambda__2___closed__10;
  x_2 = lean_alloc_ctor(0, 1, 0);
  lean_ctor_set(x_2, 0, x_1);
  return x_2;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_deltaLHS___lambda__2(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6) {
  _start:
  {
  lean_object* x_7; 
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_3);
  lean_inc(x_2);
  lean_inc(x_1);
  x_7 = l_Lean_Meta_getMVarType_x27(x_1, x_2, x_3, x_4, x_5, x_6);
  if (lean_obj_tag(x_7) == 0)
  {
  lean_object* x_8; lean_object* x_9; lean_object* x_10; lean_object* x_11; uint8_t x_12; 
  x_8 = lean_ctor_get(x_7, 0);
  lean_inc(x_8);
  x_9 = lean_ctor_get(x_7, 1);
  lean_inc(x_9);
  lean_dec(x_7);
  x_10 = l_Lean_Elab_deltaLHS___lambda__2___closed__2;
  x_11 = lean_unsigned_to_nat(3u);
  x_12 = l_Lean_Expr_isAppOfArity(x_8, x_10, x_11);
  if (x_12 == 0)
  {
  lean_object* x_13; lean_object* x_14; lean_object* x_15; lean_object* x_16; 
  lean_dec(x_8);
  x_13 = l_Lean_Elab_deltaLHS___lambda__2___closed__4;
  x_14 = l_Lean_Elab_deltaLHS___lambda__2___closed__7;
  x_15 = lean_box(0);
  x_16 = l_Lean_Meta_throwTacticEx___rarg(x_13, x_1, x_14, x_15, x_2, x_3, x_4, x_5, x_9);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_2);
  return x_16;
  }
  else
  {
  lean_object* x_17; lean_object* x_18; lean_object* x_19; lean_object* x_20; lean_object* x_21; lean_object* x_22; 
  x_17 = l_Lean_Expr_appFn_x21(x_8);
  x_18 = l_Lean_Expr_appArg_x21(x_17);
  lean_dec(x_17);
  x_19 = l_Lean_Expr_appArg_x21(x_8);
  lean_dec(x_8);
  x_20 = l_Lean_Elab_deltaLHS___lambda__2___closed__8;
  x_21 = l_Lean_Meta_delta_x3f(x_18, x_20, x_4, x_5, x_9);
  x_22 = lean_ctor_get(x_21, 0);
  lean_inc(x_22);
  if (lean_obj_tag(x_22) == 0)
  {
  lean_object* x_23; lean_object* x_24; lean_object* x_25; lean_object* x_26; lean_object* x_27; 
  lean_dec(x_19);
  x_23 = lean_ctor_get(x_21, 1);
  lean_inc(x_23);
  lean_dec(x_21);
  x_24 = l_Lean_Elab_deltaLHS___lambda__2___closed__4;
  x_25 = l_Lean_Elab_deltaLHS___lambda__2___closed__11;
  x_26 = lean_box(0);
  x_27 = l_Lean_Meta_throwTacticEx___rarg(x_24, x_1, x_25, x_26, x_2, x_3, x_4, x_5, x_23);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_2);
  return x_27;
  }
  else
  {
  lean_object* x_28; lean_object* x_29; lean_object* x_30; 
  x_28 = lean_ctor_get(x_21, 1);
  lean_inc(x_28);
  lean_dec(x_21);
  x_29 = lean_ctor_get(x_22, 0);
  lean_inc(x_29);
  lean_dec(x_22);
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_3);
  lean_inc(x_2);
  x_30 = l_Lean_Meta_mkEq(x_29, x_19, x_2, x_3, x_4, x_5, x_28);
  if (lean_obj_tag(x_30) == 0)
  {
  lean_object* x_31; lean_object* x_32; lean_object* x_33; 
  x_31 = lean_ctor_get(x_30, 0);
  lean_inc(x_31);
  x_32 = lean_ctor_get(x_30, 1);
  lean_inc(x_32);
  lean_dec(x_30);
  x_33 = l_Lean_Meta_replaceTargetDefEq(x_1, x_31, x_2, x_3, x_4, x_5, x_32);
  return x_33;
  }
  else
  {
  uint8_t x_34; 
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_2);
  lean_dec(x_1);
  x_34 = !lean_is_exclusive(x_30);
  if (x_34 == 0)
  {
  return x_30;
  }
  else
  {
  lean_object* x_35; lean_object* x_36; lean_object* x_37; 
  x_35 = lean_ctor_get(x_30, 0);
  x_36 = lean_ctor_get(x_30, 1);
  lean_inc(x_36);
  lean_inc(x_35);
  lean_dec(x_30);
  x_37 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_37, 0, x_35);
  lean_ctor_set(x_37, 1, x_36);
  return x_37;
  }
  }
  }
  }
  }
  else
  {
  uint8_t x_38; 
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_2);
  lean_dec(x_1);
  x_38 = !lean_is_exclusive(x_7);
  if (x_38 == 0)
  {
  return x_7;
  }
  else
  {
  lean_object* x_39; lean_object* x_40; lean_object* x_41; 
  x_39 = lean_ctor_get(x_7, 0);
  x_40 = lean_ctor_get(x_7, 1);
  lean_inc(x_40);
  lean_inc(x_39);
  lean_dec(x_7);
  x_41 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_41, 0, x_39);
  lean_ctor_set(x_41, 1, x_40);
  return x_41;
  }
  }
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_deltaLHS(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6) {
  _start:
  {
  lean_object* x_7; lean_object* x_8; 
  lean_inc(x_1);
  x_7 = lean_alloc_closure((void*)(l_Lean_Elab_deltaLHS___lambda__2), 6, 1);
  lean_closure_set(x_7, 0, x_1);
  x_8 = l_Lean_Meta_withMVarContext___at___private_Lean_Meta_SynthInstance_0__Lean_Meta_synthPendingImp___spec__1___rarg(x_1, x_7, x_2, x_3, x_4, x_5, x_6);
  return x_8;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_deltaLHS___lambda__1___boxed(lean_object* x_1) {
  _start:
  {
  uint8_t x_2; lean_object* x_3; 
  x_2 = l_Lean_Elab_deltaLHS___lambda__1(x_1);
  lean_dec(x_1);
  x_3 = lean_box(x_2);
  return x_3;
  }
  }
  LEAN_EXPORT uint8_t l_Lean_Elab_deltaRHS_x3f___lambda__1(lean_object* x_1, lean_object* x_2) {
  _start:
  {
  uint8_t x_3; 
  x_3 = lean_name_eq(x_2, x_1);
  return x_3;
  }
  }
  static lean_object* _init_l_Lean_Elab_deltaRHS_x3f___lambda__2___closed__1() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("deltaRHS");
  return x_1;
  }
  }
  static lean_object* _init_l_Lean_Elab_deltaRHS_x3f___lambda__2___closed__2() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; lean_object* x_3; 
  x_1 = lean_box(0);
  x_2 = l_Lean_Elab_deltaRHS_x3f___lambda__2___closed__1;
  x_3 = lean_name_mk_string(x_1, x_2);
  return x_3;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_deltaRHS_x3f___lambda__2(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7) {
  _start:
  {
  lean_object* x_8; 
  lean_inc(x_6);
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_3);
  lean_inc(x_1);
  x_8 = l_Lean_Meta_getMVarType_x27(x_1, x_3, x_4, x_5, x_6, x_7);
  if (lean_obj_tag(x_8) == 0)
  {
  lean_object* x_9; lean_object* x_10; lean_object* x_11; lean_object* x_12; uint8_t x_13; 
  x_9 = lean_ctor_get(x_8, 0);
  lean_inc(x_9);
  x_10 = lean_ctor_get(x_8, 1);
  lean_inc(x_10);
  lean_dec(x_8);
  x_11 = l_Lean_Elab_deltaLHS___lambda__2___closed__2;
  x_12 = lean_unsigned_to_nat(3u);
  x_13 = l_Lean_Expr_isAppOfArity(x_9, x_11, x_12);
  if (x_13 == 0)
  {
  lean_object* x_14; lean_object* x_15; lean_object* x_16; lean_object* x_17; 
  lean_dec(x_9);
  lean_dec(x_2);
  x_14 = l_Lean_Elab_deltaRHS_x3f___lambda__2___closed__2;
  x_15 = l_Lean_Elab_deltaLHS___lambda__2___closed__7;
  x_16 = lean_box(0);
  x_17 = l_Lean_Meta_throwTacticEx___rarg(x_14, x_1, x_15, x_16, x_3, x_4, x_5, x_6, x_10);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_3);
  return x_17;
  }
  else
  {
  lean_object* x_18; lean_object* x_19; lean_object* x_20; lean_object* x_21; lean_object* x_22; lean_object* x_23; lean_object* x_24; 
  x_18 = l_Lean_Expr_appFn_x21(x_9);
  x_19 = l_Lean_Expr_appArg_x21(x_18);
  lean_dec(x_18);
  x_20 = l_Lean_Expr_appArg_x21(x_9);
  lean_dec(x_9);
  x_21 = l_Lean_Expr_consumeMData(x_20);
  lean_dec(x_20);
  x_22 = lean_alloc_closure((void*)(l_Lean_Elab_deltaRHS_x3f___lambda__1___boxed), 2, 1);
  lean_closure_set(x_22, 0, x_2);
  x_23 = l_Lean_Meta_delta_x3f(x_21, x_22, x_5, x_6, x_10);
  x_24 = lean_ctor_get(x_23, 0);
  lean_inc(x_24);
  if (lean_obj_tag(x_24) == 0)
  {
  uint8_t x_25; 
  lean_dec(x_19);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_1);
  x_25 = !lean_is_exclusive(x_23);
  if (x_25 == 0)
  {
  lean_object* x_26; lean_object* x_27; 
  x_26 = lean_ctor_get(x_23, 0);
  lean_dec(x_26);
  x_27 = lean_box(0);
  lean_ctor_set(x_23, 0, x_27);
  return x_23;
  }
  else
  {
  lean_object* x_28; lean_object* x_29; lean_object* x_30; 
  x_28 = lean_ctor_get(x_23, 1);
  lean_inc(x_28);
  lean_dec(x_23);
  x_29 = lean_box(0);
  x_30 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_30, 0, x_29);
  lean_ctor_set(x_30, 1, x_28);
  return x_30;
  }
  }
  else
  {
  lean_object* x_31; uint8_t x_32; 
  x_31 = lean_ctor_get(x_23, 1);
  lean_inc(x_31);
  lean_dec(x_23);
  x_32 = !lean_is_exclusive(x_24);
  if (x_32 == 0)
  {
  lean_object* x_33; lean_object* x_34; 
  x_33 = lean_ctor_get(x_24, 0);
  lean_inc(x_6);
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_3);
  x_34 = l_Lean_Meta_mkEq(x_19, x_33, x_3, x_4, x_5, x_6, x_31);
  if (lean_obj_tag(x_34) == 0)
  {
  lean_object* x_35; lean_object* x_36; lean_object* x_37; 
  x_35 = lean_ctor_get(x_34, 0);
  lean_inc(x_35);
  x_36 = lean_ctor_get(x_34, 1);
  lean_inc(x_36);
  lean_dec(x_34);
  x_37 = l_Lean_Meta_replaceTargetDefEq(x_1, x_35, x_3, x_4, x_5, x_6, x_36);
  if (lean_obj_tag(x_37) == 0)
  {
  uint8_t x_38; 
  x_38 = !lean_is_exclusive(x_37);
  if (x_38 == 0)
  {
  lean_object* x_39; 
  x_39 = lean_ctor_get(x_37, 0);
  lean_ctor_set(x_24, 0, x_39);
  lean_ctor_set(x_37, 0, x_24);
  return x_37;
  }
  else
  {
  lean_object* x_40; lean_object* x_41; lean_object* x_42; 
  x_40 = lean_ctor_get(x_37, 0);
  x_41 = lean_ctor_get(x_37, 1);
  lean_inc(x_41);
  lean_inc(x_40);
  lean_dec(x_37);
  lean_ctor_set(x_24, 0, x_40);
  x_42 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_42, 0, x_24);
  lean_ctor_set(x_42, 1, x_41);
  return x_42;
  }
  }
  else
  {
  uint8_t x_43; 
  lean_free_object(x_24);
  x_43 = !lean_is_exclusive(x_37);
  if (x_43 == 0)
  {
  return x_37;
  }
  else
  {
  lean_object* x_44; lean_object* x_45; lean_object* x_46; 
  x_44 = lean_ctor_get(x_37, 0);
  x_45 = lean_ctor_get(x_37, 1);
  lean_inc(x_45);
  lean_inc(x_44);
  lean_dec(x_37);
  x_46 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_46, 0, x_44);
  lean_ctor_set(x_46, 1, x_45);
  return x_46;
  }
  }
  }
  else
  {
  uint8_t x_47; 
  lean_free_object(x_24);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_1);
  x_47 = !lean_is_exclusive(x_34);
  if (x_47 == 0)
  {
  return x_34;
  }
  else
  {
  lean_object* x_48; lean_object* x_49; lean_object* x_50; 
  x_48 = lean_ctor_get(x_34, 0);
  x_49 = lean_ctor_get(x_34, 1);
  lean_inc(x_49);
  lean_inc(x_48);
  lean_dec(x_34);
  x_50 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_50, 0, x_48);
  lean_ctor_set(x_50, 1, x_49);
  return x_50;
  }
  }
  }
  else
  {
  lean_object* x_51; lean_object* x_52; 
  x_51 = lean_ctor_get(x_24, 0);
  lean_inc(x_51);
  lean_dec(x_24);
  lean_inc(x_6);
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_3);
  x_52 = l_Lean_Meta_mkEq(x_19, x_51, x_3, x_4, x_5, x_6, x_31);
  if (lean_obj_tag(x_52) == 0)
  {
  lean_object* x_53; lean_object* x_54; lean_object* x_55; 
  x_53 = lean_ctor_get(x_52, 0);
  lean_inc(x_53);
  x_54 = lean_ctor_get(x_52, 1);
  lean_inc(x_54);
  lean_dec(x_52);
  x_55 = l_Lean_Meta_replaceTargetDefEq(x_1, x_53, x_3, x_4, x_5, x_6, x_54);
  if (lean_obj_tag(x_55) == 0)
  {
  lean_object* x_56; lean_object* x_57; lean_object* x_58; lean_object* x_59; lean_object* x_60; 
  x_56 = lean_ctor_get(x_55, 0);
  lean_inc(x_56);
  x_57 = lean_ctor_get(x_55, 1);
  lean_inc(x_57);
  if (lean_is_exclusive(x_55)) {
   lean_ctor_release(x_55, 0);
   lean_ctor_release(x_55, 1);
   x_58 = x_55;
  } else {
   lean_dec_ref(x_55);
   x_58 = lean_box(0);
  }
  x_59 = lean_alloc_ctor(1, 1, 0);
  lean_ctor_set(x_59, 0, x_56);
  if (lean_is_scalar(x_58)) {
   x_60 = lean_alloc_ctor(0, 2, 0);
  } else {
   x_60 = x_58;
  }
  lean_ctor_set(x_60, 0, x_59);
  lean_ctor_set(x_60, 1, x_57);
  return x_60;
  }
  else
  {
  lean_object* x_61; lean_object* x_62; lean_object* x_63; lean_object* x_64; 
  x_61 = lean_ctor_get(x_55, 0);
  lean_inc(x_61);
  x_62 = lean_ctor_get(x_55, 1);
  lean_inc(x_62);
  if (lean_is_exclusive(x_55)) {
   lean_ctor_release(x_55, 0);
   lean_ctor_release(x_55, 1);
   x_63 = x_55;
  } else {
   lean_dec_ref(x_55);
   x_63 = lean_box(0);
  }
  if (lean_is_scalar(x_63)) {
   x_64 = lean_alloc_ctor(1, 2, 0);
  } else {
   x_64 = x_63;
  }
  lean_ctor_set(x_64, 0, x_61);
  lean_ctor_set(x_64, 1, x_62);
  return x_64;
  }
  }
  else
  {
  lean_object* x_65; lean_object* x_66; lean_object* x_67; lean_object* x_68; 
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_1);
  x_65 = lean_ctor_get(x_52, 0);
  lean_inc(x_65);
  x_66 = lean_ctor_get(x_52, 1);
  lean_inc(x_66);
  if (lean_is_exclusive(x_52)) {
   lean_ctor_release(x_52, 0);
   lean_ctor_release(x_52, 1);
   x_67 = x_52;
  } else {
   lean_dec_ref(x_52);
   x_67 = lean_box(0);
  }
  if (lean_is_scalar(x_67)) {
   x_68 = lean_alloc_ctor(1, 2, 0);
  } else {
   x_68 = x_67;
  }
  lean_ctor_set(x_68, 0, x_65);
  lean_ctor_set(x_68, 1, x_66);
  return x_68;
  }
  }
  }
  }
  }
  else
  {
  uint8_t x_69; 
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_2);
  lean_dec(x_1);
  x_69 = !lean_is_exclusive(x_8);
  if (x_69 == 0)
  {
  return x_8;
  }
  else
  {
  lean_object* x_70; lean_object* x_71; lean_object* x_72; 
  x_70 = lean_ctor_get(x_8, 0);
  x_71 = lean_ctor_get(x_8, 1);
  lean_inc(x_71);
  lean_inc(x_70);
  lean_dec(x_8);
  x_72 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_72, 0, x_70);
  lean_ctor_set(x_72, 1, x_71);
  return x_72;
  }
  }
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_deltaRHS_x3f(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7) {
  _start:
  {
  lean_object* x_8; lean_object* x_9; 
  lean_inc(x_1);
  x_8 = lean_alloc_closure((void*)(l_Lean_Elab_deltaRHS_x3f___lambda__2), 7, 2);
  lean_closure_set(x_8, 0, x_1);
  lean_closure_set(x_8, 1, x_2);
  x_9 = l_Lean_Meta_withMVarContext___at___private_Lean_Meta_SynthInstance_0__Lean_Meta_synthPendingImp___spec__1___rarg(x_1, x_8, x_3, x_4, x_5, x_6, x_7);
  return x_9;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_deltaRHS_x3f___lambda__1___boxed(lean_object* x_1, lean_object* x_2) {
  _start:
  {
  uint8_t x_3; lean_object* x_4; 
  x_3 = l_Lean_Elab_deltaRHS_x3f___lambda__1(x_1, x_2);
  lean_dec(x_2);
  lean_dec(x_1);
  x_4 = lean_box(x_3);
  return x_4;
  }
  }
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_whnfAux(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6) {
  _start:
  {
  lean_object* x_7; 
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_3);
  lean_inc(x_2);
  x_7 = l_Lean_Meta_whnfR(x_1, x_2, x_3, x_4, x_5, x_6);
  if (lean_obj_tag(x_7) == 0)
  {
  lean_object* x_8; 
  x_8 = lean_ctor_get(x_7, 0);
  lean_inc(x_8);
  if (lean_obj_tag(x_8) == 11)
  {
  lean_object* x_9; uint8_t x_10; 
  x_9 = lean_ctor_get(x_7, 1);
  lean_inc(x_9);
  lean_dec(x_7);
  x_10 = !lean_is_exclusive(x_8);
  if (x_10 == 0)
  {
  lean_object* x_11; lean_object* x_12; lean_object* x_13; lean_object* x_14; 
  x_11 = lean_ctor_get(x_8, 0);
  x_12 = lean_ctor_get(x_8, 1);
  x_13 = lean_ctor_get(x_8, 2);
  lean_inc(x_13);
  x_14 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_whnfAux(x_13, x_2, x_3, x_4, x_5, x_9);
  if (lean_obj_tag(x_14) == 0)
  {
  uint8_t x_15; 
  x_15 = !lean_is_exclusive(x_14);
  if (x_15 == 0)
  {
  lean_object* x_16; lean_object* x_17; 
  x_16 = lean_ctor_get(x_14, 0);
  x_17 = lean_expr_update_proj(x_8, x_16);
  lean_ctor_set(x_14, 0, x_17);
  return x_14;
  }
  else
  {
  lean_object* x_18; lean_object* x_19; lean_object* x_20; lean_object* x_21; 
  x_18 = lean_ctor_get(x_14, 0);
  x_19 = lean_ctor_get(x_14, 1);
  lean_inc(x_19);
  lean_inc(x_18);
  lean_dec(x_14);
  x_20 = lean_expr_update_proj(x_8, x_18);
  x_21 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_21, 0, x_20);
  lean_ctor_set(x_21, 1, x_19);
  return x_21;
  }
  }
  else
  {
  uint8_t x_22; 
  lean_free_object(x_8);
  lean_dec(x_13);
  lean_dec(x_12);
  lean_dec(x_11);
  x_22 = !lean_is_exclusive(x_14);
  if (x_22 == 0)
  {
  return x_14;
  }
  else
  {
  lean_object* x_23; lean_object* x_24; lean_object* x_25; 
  x_23 = lean_ctor_get(x_14, 0);
  x_24 = lean_ctor_get(x_14, 1);
  lean_inc(x_24);
  lean_inc(x_23);
  lean_dec(x_14);
  x_25 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_25, 0, x_23);
  lean_ctor_set(x_25, 1, x_24);
  return x_25;
  }
  }
  }
  else
  {
  lean_object* x_26; lean_object* x_27; lean_object* x_28; uint64_t x_29; lean_object* x_30; 
  x_26 = lean_ctor_get(x_8, 0);
  x_27 = lean_ctor_get(x_8, 1);
  x_28 = lean_ctor_get(x_8, 2);
  x_29 = lean_ctor_get_uint64(x_8, sizeof(void*)*3);
  lean_inc(x_28);
  lean_inc(x_27);
  lean_inc(x_26);
  lean_dec(x_8);
  lean_inc(x_28);
  x_30 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_whnfAux(x_28, x_2, x_3, x_4, x_5, x_9);
  if (lean_obj_tag(x_30) == 0)
  {
  lean_object* x_31; lean_object* x_32; lean_object* x_33; lean_object* x_34; lean_object* x_35; lean_object* x_36; 
  x_31 = lean_ctor_get(x_30, 0);
  lean_inc(x_31);
  x_32 = lean_ctor_get(x_30, 1);
  lean_inc(x_32);
  if (lean_is_exclusive(x_30)) {
   lean_ctor_release(x_30, 0);
   lean_ctor_release(x_30, 1);
   x_33 = x_30;
  } else {
   lean_dec_ref(x_30);
   x_33 = lean_box(0);
  }
  x_34 = lean_alloc_ctor(11, 3, 8);
  lean_ctor_set(x_34, 0, x_26);
  lean_ctor_set(x_34, 1, x_27);
  lean_ctor_set(x_34, 2, x_28);
  lean_ctor_set_uint64(x_34, sizeof(void*)*3, x_29);
  x_35 = lean_expr_update_proj(x_34, x_31);
  if (lean_is_scalar(x_33)) {
   x_36 = lean_alloc_ctor(0, 2, 0);
  } else {
   x_36 = x_33;
  }
  lean_ctor_set(x_36, 0, x_35);
  lean_ctor_set(x_36, 1, x_32);
  return x_36;
  }
  else
  {
  lean_object* x_37; lean_object* x_38; lean_object* x_39; lean_object* x_40; 
  lean_dec(x_28);
  lean_dec(x_27);
  lean_dec(x_26);
  x_37 = lean_ctor_get(x_30, 0);
  lean_inc(x_37);
  x_38 = lean_ctor_get(x_30, 1);
  lean_inc(x_38);
  if (lean_is_exclusive(x_30)) {
   lean_ctor_release(x_30, 0);
   lean_ctor_release(x_30, 1);
   x_39 = x_30;
  } else {
   lean_dec_ref(x_30);
   x_39 = lean_box(0);
  }
  if (lean_is_scalar(x_39)) {
   x_40 = lean_alloc_ctor(1, 2, 0);
  } else {
   x_40 = x_39;
  }
  lean_ctor_set(x_40, 0, x_37);
  lean_ctor_set(x_40, 1, x_38);
  return x_40;
  }
  }
  }
  else
  {
  uint8_t x_41; 
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_2);
  x_41 = !lean_is_exclusive(x_7);
  if (x_41 == 0)
  {
  lean_object* x_42; 
  x_42 = lean_ctor_get(x_7, 0);
  lean_dec(x_42);
  return x_7;
  }
  else
  {
  lean_object* x_43; lean_object* x_44; 
  x_43 = lean_ctor_get(x_7, 1);
  lean_inc(x_43);
  lean_dec(x_7);
  x_44 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_44, 0, x_8);
  lean_ctor_set(x_44, 1, x_43);
  return x_44;
  }
  }
  }
  else
  {
  uint8_t x_45; 
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_2);
  x_45 = !lean_is_exclusive(x_7);
  if (x_45 == 0)
  {
  return x_7;
  }
  else
  {
  lean_object* x_46; lean_object* x_47; lean_object* x_48; 
  x_46 = lean_ctor_get(x_7, 0);
  x_47 = lean_ctor_get(x_7, 1);
  lean_inc(x_47);
  lean_inc(x_46);
  lean_dec(x_7);
  x_48 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_48, 0, x_46);
  lean_ctor_set(x_48, 1, x_47);
  return x_48;
  }
  }
  }
  }
  static lean_object* _init_l_Lean_Elab_whnfReducibleLHS_x3f___lambda__1___closed__1() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("whnfReducibleLHS");
  return x_1;
  }
  }
  static lean_object* _init_l_Lean_Elab_whnfReducibleLHS_x3f___lambda__1___closed__2() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; lean_object* x_3; 
  x_1 = lean_box(0);
  x_2 = l_Lean_Elab_whnfReducibleLHS_x3f___lambda__1___closed__1;
  x_3 = lean_name_mk_string(x_1, x_2);
  return x_3;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_whnfReducibleLHS_x3f___lambda__1(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6) {
  _start:
  {
  lean_object* x_7; 
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_3);
  lean_inc(x_2);
  lean_inc(x_1);
  x_7 = l_Lean_Meta_getMVarType_x27(x_1, x_2, x_3, x_4, x_5, x_6);
  if (lean_obj_tag(x_7) == 0)
  {
  lean_object* x_8; lean_object* x_9; lean_object* x_10; lean_object* x_11; uint8_t x_12; 
  x_8 = lean_ctor_get(x_7, 0);
  lean_inc(x_8);
  x_9 = lean_ctor_get(x_7, 1);
  lean_inc(x_9);
  lean_dec(x_7);
  x_10 = l_Lean_Elab_deltaLHS___lambda__2___closed__2;
  x_11 = lean_unsigned_to_nat(3u);
  x_12 = l_Lean_Expr_isAppOfArity(x_8, x_10, x_11);
  if (x_12 == 0)
  {
  lean_object* x_13; lean_object* x_14; lean_object* x_15; lean_object* x_16; 
  lean_dec(x_8);
  x_13 = l_Lean_Elab_whnfReducibleLHS_x3f___lambda__1___closed__2;
  x_14 = l_Lean_Elab_deltaLHS___lambda__2___closed__7;
  x_15 = lean_box(0);
  x_16 = l_Lean_Meta_throwTacticEx___rarg(x_13, x_1, x_14, x_15, x_2, x_3, x_4, x_5, x_9);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_2);
  return x_16;
  }
  else
  {
  lean_object* x_17; lean_object* x_18; lean_object* x_19; lean_object* x_20; 
  x_17 = l_Lean_Expr_appFn_x21(x_8);
  x_18 = l_Lean_Expr_appArg_x21(x_17);
  lean_dec(x_17);
  x_19 = l_Lean_Expr_appArg_x21(x_8);
  lean_dec(x_8);
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_3);
  lean_inc(x_2);
  lean_inc(x_18);
  x_20 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_whnfAux(x_18, x_2, x_3, x_4, x_5, x_9);
  if (lean_obj_tag(x_20) == 0)
  {
  uint8_t x_21; 
  x_21 = !lean_is_exclusive(x_20);
  if (x_21 == 0)
  {
  lean_object* x_22; lean_object* x_23; uint8_t x_24; 
  x_22 = lean_ctor_get(x_20, 0);
  x_23 = lean_ctor_get(x_20, 1);
  x_24 = lean_expr_eqv(x_22, x_18);
  lean_dec(x_18);
  if (x_24 == 0)
  {
  lean_object* x_25; 
  lean_free_object(x_20);
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_3);
  lean_inc(x_2);
  x_25 = l_Lean_Meta_mkEq(x_22, x_19, x_2, x_3, x_4, x_5, x_23);
  if (lean_obj_tag(x_25) == 0)
  {
  lean_object* x_26; lean_object* x_27; lean_object* x_28; 
  x_26 = lean_ctor_get(x_25, 0);
  lean_inc(x_26);
  x_27 = lean_ctor_get(x_25, 1);
  lean_inc(x_27);
  lean_dec(x_25);
  x_28 = l_Lean_Meta_replaceTargetDefEq(x_1, x_26, x_2, x_3, x_4, x_5, x_27);
  if (lean_obj_tag(x_28) == 0)
  {
  uint8_t x_29; 
  x_29 = !lean_is_exclusive(x_28);
  if (x_29 == 0)
  {
  lean_object* x_30; lean_object* x_31; 
  x_30 = lean_ctor_get(x_28, 0);
  x_31 = lean_alloc_ctor(1, 1, 0);
  lean_ctor_set(x_31, 0, x_30);
  lean_ctor_set(x_28, 0, x_31);
  return x_28;
  }
  else
  {
  lean_object* x_32; lean_object* x_33; lean_object* x_34; lean_object* x_35; 
  x_32 = lean_ctor_get(x_28, 0);
  x_33 = lean_ctor_get(x_28, 1);
  lean_inc(x_33);
  lean_inc(x_32);
  lean_dec(x_28);
  x_34 = lean_alloc_ctor(1, 1, 0);
  lean_ctor_set(x_34, 0, x_32);
  x_35 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_35, 0, x_34);
  lean_ctor_set(x_35, 1, x_33);
  return x_35;
  }
  }
  else
  {
  uint8_t x_36; 
  x_36 = !lean_is_exclusive(x_28);
  if (x_36 == 0)
  {
  return x_28;
  }
  else
  {
  lean_object* x_37; lean_object* x_38; lean_object* x_39; 
  x_37 = lean_ctor_get(x_28, 0);
  x_38 = lean_ctor_get(x_28, 1);
  lean_inc(x_38);
  lean_inc(x_37);
  lean_dec(x_28);
  x_39 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_39, 0, x_37);
  lean_ctor_set(x_39, 1, x_38);
  return x_39;
  }
  }
  }
  else
  {
  uint8_t x_40; 
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_2);
  lean_dec(x_1);
  x_40 = !lean_is_exclusive(x_25);
  if (x_40 == 0)
  {
  return x_25;
  }
  else
  {
  lean_object* x_41; lean_object* x_42; lean_object* x_43; 
  x_41 = lean_ctor_get(x_25, 0);
  x_42 = lean_ctor_get(x_25, 1);
  lean_inc(x_42);
  lean_inc(x_41);
  lean_dec(x_25);
  x_43 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_43, 0, x_41);
  lean_ctor_set(x_43, 1, x_42);
  return x_43;
  }
  }
  }
  else
  {
  lean_object* x_44; 
  lean_dec(x_22);
  lean_dec(x_19);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_2);
  lean_dec(x_1);
  x_44 = lean_box(0);
  lean_ctor_set(x_20, 0, x_44);
  return x_20;
  }
  }
  else
  {
  lean_object* x_45; lean_object* x_46; uint8_t x_47; 
  x_45 = lean_ctor_get(x_20, 0);
  x_46 = lean_ctor_get(x_20, 1);
  lean_inc(x_46);
  lean_inc(x_45);
  lean_dec(x_20);
  x_47 = lean_expr_eqv(x_45, x_18);
  lean_dec(x_18);
  if (x_47 == 0)
  {
  lean_object* x_48; 
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_3);
  lean_inc(x_2);
  x_48 = l_Lean_Meta_mkEq(x_45, x_19, x_2, x_3, x_4, x_5, x_46);
  if (lean_obj_tag(x_48) == 0)
  {
  lean_object* x_49; lean_object* x_50; lean_object* x_51; 
  x_49 = lean_ctor_get(x_48, 0);
  lean_inc(x_49);
  x_50 = lean_ctor_get(x_48, 1);
  lean_inc(x_50);
  lean_dec(x_48);
  x_51 = l_Lean_Meta_replaceTargetDefEq(x_1, x_49, x_2, x_3, x_4, x_5, x_50);
  if (lean_obj_tag(x_51) == 0)
  {
  lean_object* x_52; lean_object* x_53; lean_object* x_54; lean_object* x_55; lean_object* x_56; 
  x_52 = lean_ctor_get(x_51, 0);
  lean_inc(x_52);
  x_53 = lean_ctor_get(x_51, 1);
  lean_inc(x_53);
  if (lean_is_exclusive(x_51)) {
   lean_ctor_release(x_51, 0);
   lean_ctor_release(x_51, 1);
   x_54 = x_51;
  } else {
   lean_dec_ref(x_51);
   x_54 = lean_box(0);
  }
  x_55 = lean_alloc_ctor(1, 1, 0);
  lean_ctor_set(x_55, 0, x_52);
  if (lean_is_scalar(x_54)) {
   x_56 = lean_alloc_ctor(0, 2, 0);
  } else {
   x_56 = x_54;
  }
  lean_ctor_set(x_56, 0, x_55);
  lean_ctor_set(x_56, 1, x_53);
  return x_56;
  }
  else
  {
  lean_object* x_57; lean_object* x_58; lean_object* x_59; lean_object* x_60; 
  x_57 = lean_ctor_get(x_51, 0);
  lean_inc(x_57);
  x_58 = lean_ctor_get(x_51, 1);
  lean_inc(x_58);
  if (lean_is_exclusive(x_51)) {
   lean_ctor_release(x_51, 0);
   lean_ctor_release(x_51, 1);
   x_59 = x_51;
  } else {
   lean_dec_ref(x_51);
   x_59 = lean_box(0);
  }
  if (lean_is_scalar(x_59)) {
   x_60 = lean_alloc_ctor(1, 2, 0);
  } else {
   x_60 = x_59;
  }
  lean_ctor_set(x_60, 0, x_57);
  lean_ctor_set(x_60, 1, x_58);
  return x_60;
  }
  }
  else
  {
  lean_object* x_61; lean_object* x_62; lean_object* x_63; lean_object* x_64; 
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_2);
  lean_dec(x_1);
  x_61 = lean_ctor_get(x_48, 0);
  lean_inc(x_61);
  x_62 = lean_ctor_get(x_48, 1);
  lean_inc(x_62);
  if (lean_is_exclusive(x_48)) {
   lean_ctor_release(x_48, 0);
   lean_ctor_release(x_48, 1);
   x_63 = x_48;
  } else {
   lean_dec_ref(x_48);
   x_63 = lean_box(0);
  }
  if (lean_is_scalar(x_63)) {
   x_64 = lean_alloc_ctor(1, 2, 0);
  } else {
   x_64 = x_63;
  }
  lean_ctor_set(x_64, 0, x_61);
  lean_ctor_set(x_64, 1, x_62);
  return x_64;
  }
  }
  else
  {
  lean_object* x_65; lean_object* x_66; 
  lean_dec(x_45);
  lean_dec(x_19);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_2);
  lean_dec(x_1);
  x_65 = lean_box(0);
  x_66 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_66, 0, x_65);
  lean_ctor_set(x_66, 1, x_46);
  return x_66;
  }
  }
  }
  else
  {
  uint8_t x_67; 
  lean_dec(x_19);
  lean_dec(x_18);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_2);
  lean_dec(x_1);
  x_67 = !lean_is_exclusive(x_20);
  if (x_67 == 0)
  {
  return x_20;
  }
  else
  {
  lean_object* x_68; lean_object* x_69; lean_object* x_70; 
  x_68 = lean_ctor_get(x_20, 0);
  x_69 = lean_ctor_get(x_20, 1);
  lean_inc(x_69);
  lean_inc(x_68);
  lean_dec(x_20);
  x_70 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_70, 0, x_68);
  lean_ctor_set(x_70, 1, x_69);
  return x_70;
  }
  }
  }
  }
  else
  {
  uint8_t x_71; 
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_2);
  lean_dec(x_1);
  x_71 = !lean_is_exclusive(x_7);
  if (x_71 == 0)
  {
  return x_7;
  }
  else
  {
  lean_object* x_72; lean_object* x_73; lean_object* x_74; 
  x_72 = lean_ctor_get(x_7, 0);
  x_73 = lean_ctor_get(x_7, 1);
  lean_inc(x_73);
  lean_inc(x_72);
  lean_dec(x_7);
  x_74 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_74, 0, x_72);
  lean_ctor_set(x_74, 1, x_73);
  return x_74;
  }
  }
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_whnfReducibleLHS_x3f(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6) {
  _start:
  {
  lean_object* x_7; lean_object* x_8; 
  lean_inc(x_1);
  x_7 = lean_alloc_closure((void*)(l_Lean_Elab_whnfReducibleLHS_x3f___lambda__1), 6, 1);
  lean_closure_set(x_7, 0, x_1);
  x_8 = l_Lean_Meta_withMVarContext___at___private_Lean_Meta_SynthInstance_0__Lean_Meta_synthPendingImp___spec__1___rarg(x_1, x_7, x_2, x_3, x_4, x_5, x_6);
  return x_8;
  }
  }
  static lean_object* _init_l_Lean_Elab_tryContradiction___closed__1() {
  _start:
  {
  uint8_t x_1; lean_object* x_2; lean_object* x_3; 
  x_1 = 1;
  x_2 = lean_unsigned_to_nat(16u);
  x_3 = lean_alloc_ctor(0, 1, 2);
  lean_ctor_set(x_3, 0, x_2);
  lean_ctor_set_uint8(x_3, sizeof(void*)*1, x_1);
  lean_ctor_set_uint8(x_3, sizeof(void*)*1 + 1, x_1);
  return x_3;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_tryContradiction(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6) {
  _start:
  {
  lean_object* x_7; lean_object* x_8; 
  x_7 = l_Lean_Elab_tryContradiction___closed__1;
  x_8 = l_Lean_Meta_contradiction(x_1, x_7, x_2, x_3, x_4, x_5, x_6);
  if (lean_obj_tag(x_8) == 0)
  {
  uint8_t x_9; 
  x_9 = !lean_is_exclusive(x_8);
  if (x_9 == 0)
  {
  lean_object* x_10; uint8_t x_11; lean_object* x_12; 
  x_10 = lean_ctor_get(x_8, 0);
  lean_dec(x_10);
  x_11 = 1;
  x_12 = lean_box(x_11);
  lean_ctor_set(x_8, 0, x_12);
  return x_8;
  }
  else
  {
  lean_object* x_13; uint8_t x_14; lean_object* x_15; lean_object* x_16; 
  x_13 = lean_ctor_get(x_8, 1);
  lean_inc(x_13);
  lean_dec(x_8);
  x_14 = 1;
  x_15 = lean_box(x_14);
  x_16 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_16, 0, x_15);
  lean_ctor_set(x_16, 1, x_13);
  return x_16;
  }
  }
  else
  {
  uint8_t x_17; 
  x_17 = !lean_is_exclusive(x_8);
  if (x_17 == 0)
  {
  lean_object* x_18; uint8_t x_19; lean_object* x_20; 
  x_18 = lean_ctor_get(x_8, 0);
  lean_dec(x_18);
  x_19 = 0;
  x_20 = lean_box(x_19);
  lean_ctor_set_tag(x_8, 0);
  lean_ctor_set(x_8, 0, x_20);
  return x_8;
  }
  else
  {
  lean_object* x_21; uint8_t x_22; lean_object* x_23; lean_object* x_24; 
  x_21 = lean_ctor_get(x_8, 1);
  lean_inc(x_21);
  lean_dec(x_8);
  x_22 = 0;
  x_23 = lean_box(x_22);
  x_24 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_24, 0, x_23);
  lean_ctor_set(x_24, 1, x_21);
  return x_24;
  }
  }
  }
  }
  static uint64_t _init_l_Lean_Elab_Structural_instInhabitedEqnInfo___closed__1() {
  _start:
  {
  lean_object* x_1; uint64_t x_2; 
  x_1 = lean_unsigned_to_nat(0u);
  x_2 = lean_uint64_of_nat(x_1);
  return x_2;
  }
  }
  static lean_object* _init_l_Lean_Elab_Structural_instInhabitedEqnInfo___closed__2() {
  _start:
  {
  lean_object* x_1; uint64_t x_2; lean_object* x_3; 
  x_1 = lean_unsigned_to_nat(0u);
  x_2 = l_Lean_Elab_Structural_instInhabitedEqnInfo___closed__1;
  x_3 = lean_alloc_ctor(0, 1, 8);
  lean_ctor_set(x_3, 0, x_1);
  lean_ctor_set_uint64(x_3, sizeof(void*)*1, x_2);
  return x_3;
  }
  }
  static lean_object* _init_l_Lean_Elab_Structural_instInhabitedEqnInfo___closed__3() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; lean_object* x_3; lean_object* x_4; lean_object* x_5; 
  x_1 = lean_box(0);
  x_2 = lean_box(0);
  x_3 = l_Lean_Elab_Structural_instInhabitedEqnInfo___closed__2;
  x_4 = lean_unsigned_to_nat(0u);
  x_5 = lean_alloc_ctor(0, 5, 0);
  lean_ctor_set(x_5, 0, x_2);
  lean_ctor_set(x_5, 1, x_1);
  lean_ctor_set(x_5, 2, x_3);
  lean_ctor_set(x_5, 3, x_3);
  lean_ctor_set(x_5, 4, x_4);
  return x_5;
  }
  }
  static lean_object* _init_l_Lean_Elab_Structural_instInhabitedEqnInfo() {
  _start:
  {
  lean_object* x_1; 
  x_1 = l_Lean_Elab_Structural_instInhabitedEqnInfo___closed__3;
  return x_1;
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__1() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("eq_1");
  return x_1;
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__2() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; lean_object* x_3; 
  x_1 = lean_box(0);
  x_2 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__1;
  x_3 = lean_name_mk_string(x_1, x_2);
  return x_3;
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__3() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("_eqns");
  return x_1;
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__4() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; lean_object* x_3; 
  x_1 = lean_box(0);
  x_2 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__3;
  x_3 = lean_name_mk_string(x_1, x_2);
  return x_3;
  }
  }
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor(lean_object* x_1, lean_object* x_2) {
  _start:
  {
  lean_object* x_3; lean_object* x_4; lean_object* x_5; 
  x_3 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__2;
  x_4 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__4;
  x_5 = l_Lean_mkBaseNameFor(x_1, x_2, x_3, x_4);
  return x_5;
  }
  }
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___boxed(lean_object* x_1, lean_object* x_2) {
  _start:
  {
  lean_object* x_3; 
  x_3 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor(x_1, x_2);
  lean_dec(x_2);
  return x_3;
  }
  }
  LEAN_EXPORT lean_object* l_Array_foldlMUnsafe_fold___at___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___spec__1(lean_object* x_1, lean_object* x_2, size_t x_3, size_t x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8, lean_object* x_9, lean_object* x_10) {
  _start:
  {
  uint8_t x_11; 
  x_11 = lean_usize_dec_eq(x_3, x_4);
  if (x_11 == 0)
  {
  lean_object* x_12; lean_object* x_13; 
  lean_dec(x_5);
  x_12 = lean_array_uget(x_2, x_3);
  lean_inc(x_9);
  lean_inc(x_8);
  lean_inc(x_7);
  lean_inc(x_6);
  lean_inc(x_1);
  x_13 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go(x_1, x_12, x_6, x_7, x_8, x_9, x_10);
  if (lean_obj_tag(x_13) == 0)
  {
  lean_object* x_14; lean_object* x_15; size_t x_16; size_t x_17; 
  x_14 = lean_ctor_get(x_13, 0);
  lean_inc(x_14);
  x_15 = lean_ctor_get(x_13, 1);
  lean_inc(x_15);
  lean_dec(x_13);
  x_16 = 1;
  x_17 = lean_usize_add(x_3, x_16);
  x_3 = x_17;
  x_5 = x_14;
  x_10 = x_15;
  goto _start;
  }
  else
  {
  uint8_t x_19; 
  lean_dec(x_9);
  lean_dec(x_8);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_1);
  x_19 = !lean_is_exclusive(x_13);
  if (x_19 == 0)
  {
  return x_13;
  }
  else
  {
  lean_object* x_20; lean_object* x_21; lean_object* x_22; 
  x_20 = lean_ctor_get(x_13, 0);
  x_21 = lean_ctor_get(x_13, 1);
  lean_inc(x_21);
  lean_inc(x_20);
  lean_dec(x_13);
  x_22 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_22, 0, x_20);
  lean_ctor_set(x_22, 1, x_21);
  return x_22;
  }
  }
  }
  else
  {
  lean_object* x_23; 
  lean_dec(x_9);
  lean_dec(x_8);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_1);
  x_23 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_23, 0, x_5);
  lean_ctor_set(x_23, 1, x_10);
  return x_23;
  }
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__1() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("failed to generate equational theorem for '");
  return x_1;
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__2() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; 
  x_1 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__1;
  x_2 = l_Lean_stringToMessageData(x_1);
  return x_2;
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__3() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("'\n");
  return x_1;
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__4() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; 
  x_1 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__3;
  x_2 = l_Lean_stringToMessageData(x_1);
  return x_2;
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__5() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("");
  return x_1;
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__6() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; 
  x_1 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__5;
  x_2 = l_Lean_stringToMessageData(x_1);
  return x_2;
  }
  }
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8) {
  _start:
  {
  lean_object* x_9; lean_object* x_10; uint8_t x_11; 
  lean_dec(x_3);
  lean_inc(x_7);
  lean_inc(x_6);
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_1);
  x_9 = l_Lean_Elab_tryURefl(x_1, x_4, x_5, x_6, x_7, x_8);
  x_10 = lean_ctor_get(x_9, 0);
  lean_inc(x_10);
  x_11 = lean_unbox(x_10);
  lean_dec(x_10);
  if (x_11 == 0)
  {
  lean_object* x_12; lean_object* x_13; lean_object* x_14; uint8_t x_15; 
  x_12 = lean_ctor_get(x_9, 1);
  lean_inc(x_12);
  lean_dec(x_9);
  lean_inc(x_7);
  lean_inc(x_6);
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_1);
  x_13 = l_Lean_Elab_tryContradiction(x_1, x_4, x_5, x_6, x_7, x_12);
  x_14 = lean_ctor_get(x_13, 0);
  lean_inc(x_14);
  x_15 = lean_unbox(x_14);
  lean_dec(x_14);
  if (x_15 == 0)
  {
  lean_object* x_16; lean_object* x_17; 
  x_16 = lean_ctor_get(x_13, 1);
  lean_inc(x_16);
  lean_dec(x_13);
  lean_inc(x_7);
  lean_inc(x_6);
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_1);
  x_17 = l_Lean_Elab_Eqns_simpMatch_x3f(x_1, x_4, x_5, x_6, x_7, x_16);
  if (lean_obj_tag(x_17) == 0)
  {
  lean_object* x_18; 
  x_18 = lean_ctor_get(x_17, 0);
  lean_inc(x_18);
  if (lean_obj_tag(x_18) == 0)
  {
  lean_object* x_19; lean_object* x_20; 
  x_19 = lean_ctor_get(x_17, 1);
  lean_inc(x_19);
  lean_dec(x_17);
  lean_inc(x_7);
  lean_inc(x_6);
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_1);
  x_20 = l_Lean_Elab_Eqns_simpIf_x3f(x_1, x_4, x_5, x_6, x_7, x_19);
  if (lean_obj_tag(x_20) == 0)
  {
  lean_object* x_21; 
  x_21 = lean_ctor_get(x_20, 0);
  lean_inc(x_21);
  if (lean_obj_tag(x_21) == 0)
  {
  lean_object* x_22; lean_object* x_23; 
  x_22 = lean_ctor_get(x_20, 1);
  lean_inc(x_22);
  lean_dec(x_20);
  lean_inc(x_7);
  lean_inc(x_6);
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_1);
  x_23 = l_Lean_Elab_whnfReducibleLHS_x3f(x_1, x_4, x_5, x_6, x_7, x_22);
  if (lean_obj_tag(x_23) == 0)
  {
  lean_object* x_24; 
  x_24 = lean_ctor_get(x_23, 0);
  lean_inc(x_24);
  if (lean_obj_tag(x_24) == 0)
  {
  lean_object* x_25; lean_object* x_26; 
  x_25 = lean_ctor_get(x_23, 1);
  lean_inc(x_25);
  lean_dec(x_23);
  lean_inc(x_7);
  lean_inc(x_6);
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_2);
  lean_inc(x_1);
  x_26 = l_Lean_Elab_deltaRHS_x3f(x_1, x_2, x_4, x_5, x_6, x_7, x_25);
  if (lean_obj_tag(x_26) == 0)
  {
  lean_object* x_27; 
  x_27 = lean_ctor_get(x_26, 0);
  lean_inc(x_27);
  if (lean_obj_tag(x_27) == 0)
  {
  lean_object* x_28; lean_object* x_29; lean_object* x_30; 
  x_28 = lean_ctor_get(x_26, 1);
  lean_inc(x_28);
  lean_dec(x_26);
  lean_inc(x_7);
  lean_inc(x_6);
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_1);
  x_29 = l_Lean_Meta_casesOnStuckLHS_x3f(x_1, x_4, x_5, x_6, x_7, x_28);
  x_30 = lean_ctor_get(x_29, 0);
  lean_inc(x_30);
  if (lean_obj_tag(x_30) == 0)
  {
  lean_object* x_31; lean_object* x_32; lean_object* x_33; lean_object* x_34; lean_object* x_35; lean_object* x_36; lean_object* x_37; lean_object* x_38; lean_object* x_39; lean_object* x_40; lean_object* x_41; 
  x_31 = lean_ctor_get(x_29, 1);
  lean_inc(x_31);
  lean_dec(x_29);
  x_32 = lean_alloc_ctor(4, 1, 0);
  lean_ctor_set(x_32, 0, x_2);
  x_33 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__2;
  x_34 = lean_alloc_ctor(10, 2, 0);
  lean_ctor_set(x_34, 0, x_33);
  lean_ctor_set(x_34, 1, x_32);
  x_35 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__4;
  x_36 = lean_alloc_ctor(10, 2, 0);
  lean_ctor_set(x_36, 0, x_34);
  lean_ctor_set(x_36, 1, x_35);
  x_37 = lean_alloc_ctor(5, 1, 0);
  lean_ctor_set(x_37, 0, x_1);
  x_38 = lean_alloc_ctor(10, 2, 0);
  lean_ctor_set(x_38, 0, x_36);
  lean_ctor_set(x_38, 1, x_37);
  x_39 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__6;
  x_40 = lean_alloc_ctor(10, 2, 0);
  lean_ctor_set(x_40, 0, x_38);
  lean_ctor_set(x_40, 1, x_39);
  x_41 = l_Lean_throwError___at_Lean_Meta_setInlineAttribute___spec__1(x_40, x_4, x_5, x_6, x_7, x_31);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  return x_41;
  }
  else
  {
  uint8_t x_42; 
  lean_dec(x_1);
  x_42 = !lean_is_exclusive(x_29);
  if (x_42 == 0)
  {
  lean_object* x_43; lean_object* x_44; lean_object* x_45; lean_object* x_46; lean_object* x_47; uint8_t x_48; 
  x_43 = lean_ctor_get(x_29, 1);
  x_44 = lean_ctor_get(x_29, 0);
  lean_dec(x_44);
  x_45 = lean_ctor_get(x_30, 0);
  lean_inc(x_45);
  lean_dec(x_30);
  x_46 = lean_array_get_size(x_45);
  x_47 = lean_unsigned_to_nat(0u);
  x_48 = lean_nat_dec_lt(x_47, x_46);
  if (x_48 == 0)
  {
  lean_object* x_49; 
  lean_dec(x_46);
  lean_dec(x_45);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_2);
  x_49 = lean_box(0);
  lean_ctor_set(x_29, 0, x_49);
  return x_29;
  }
  else
  {
  uint8_t x_50; 
  x_50 = lean_nat_dec_le(x_46, x_46);
  if (x_50 == 0)
  {
  lean_object* x_51; 
  lean_dec(x_46);
  lean_dec(x_45);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_2);
  x_51 = lean_box(0);
  lean_ctor_set(x_29, 0, x_51);
  return x_29;
  }
  else
  {
  size_t x_52; size_t x_53; lean_object* x_54; lean_object* x_55; 
  lean_free_object(x_29);
  x_52 = 0;
  x_53 = lean_usize_of_nat(x_46);
  lean_dec(x_46);
  x_54 = lean_box(0);
  x_55 = l_Array_foldlMUnsafe_fold___at___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___spec__1(x_2, x_45, x_52, x_53, x_54, x_4, x_5, x_6, x_7, x_43);
  lean_dec(x_45);
  return x_55;
  }
  }
  }
  else
  {
  lean_object* x_56; lean_object* x_57; lean_object* x_58; lean_object* x_59; uint8_t x_60; 
  x_56 = lean_ctor_get(x_29, 1);
  lean_inc(x_56);
  lean_dec(x_29);
  x_57 = lean_ctor_get(x_30, 0);
  lean_inc(x_57);
  lean_dec(x_30);
  x_58 = lean_array_get_size(x_57);
  x_59 = lean_unsigned_to_nat(0u);
  x_60 = lean_nat_dec_lt(x_59, x_58);
  if (x_60 == 0)
  {
  lean_object* x_61; lean_object* x_62; 
  lean_dec(x_58);
  lean_dec(x_57);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_2);
  x_61 = lean_box(0);
  x_62 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_62, 0, x_61);
  lean_ctor_set(x_62, 1, x_56);
  return x_62;
  }
  else
  {
  uint8_t x_63; 
  x_63 = lean_nat_dec_le(x_58, x_58);
  if (x_63 == 0)
  {
  lean_object* x_64; lean_object* x_65; 
  lean_dec(x_58);
  lean_dec(x_57);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_2);
  x_64 = lean_box(0);
  x_65 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_65, 0, x_64);
  lean_ctor_set(x_65, 1, x_56);
  return x_65;
  }
  else
  {
  size_t x_66; size_t x_67; lean_object* x_68; lean_object* x_69; 
  x_66 = 0;
  x_67 = lean_usize_of_nat(x_58);
  lean_dec(x_58);
  x_68 = lean_box(0);
  x_69 = l_Array_foldlMUnsafe_fold___at___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___spec__1(x_2, x_57, x_66, x_67, x_68, x_4, x_5, x_6, x_7, x_56);
  lean_dec(x_57);
  return x_69;
  }
  }
  }
  }
  }
  else
  {
  lean_object* x_70; lean_object* x_71; lean_object* x_72; 
  lean_dec(x_1);
  x_70 = lean_ctor_get(x_26, 1);
  lean_inc(x_70);
  lean_dec(x_26);
  x_71 = lean_ctor_get(x_27, 0);
  lean_inc(x_71);
  lean_dec(x_27);
  x_72 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go(x_2, x_71, x_4, x_5, x_6, x_7, x_70);
  return x_72;
  }
  }
  else
  {
  uint8_t x_73; 
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_2);
  lean_dec(x_1);
  x_73 = !lean_is_exclusive(x_26);
  if (x_73 == 0)
  {
  return x_26;
  }
  else
  {
  lean_object* x_74; lean_object* x_75; lean_object* x_76; 
  x_74 = lean_ctor_get(x_26, 0);
  x_75 = lean_ctor_get(x_26, 1);
  lean_inc(x_75);
  lean_inc(x_74);
  lean_dec(x_26);
  x_76 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_76, 0, x_74);
  lean_ctor_set(x_76, 1, x_75);
  return x_76;
  }
  }
  }
  else
  {
  lean_object* x_77; lean_object* x_78; lean_object* x_79; 
  lean_dec(x_1);
  x_77 = lean_ctor_get(x_23, 1);
  lean_inc(x_77);
  lean_dec(x_23);
  x_78 = lean_ctor_get(x_24, 0);
  lean_inc(x_78);
  lean_dec(x_24);
  x_79 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go(x_2, x_78, x_4, x_5, x_6, x_7, x_77);
  return x_79;
  }
  }
  else
  {
  uint8_t x_80; 
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_2);
  lean_dec(x_1);
  x_80 = !lean_is_exclusive(x_23);
  if (x_80 == 0)
  {
  return x_23;
  }
  else
  {
  lean_object* x_81; lean_object* x_82; lean_object* x_83; 
  x_81 = lean_ctor_get(x_23, 0);
  x_82 = lean_ctor_get(x_23, 1);
  lean_inc(x_82);
  lean_inc(x_81);
  lean_dec(x_23);
  x_83 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_83, 0, x_81);
  lean_ctor_set(x_83, 1, x_82);
  return x_83;
  }
  }
  }
  else
  {
  lean_object* x_84; lean_object* x_85; lean_object* x_86; 
  lean_dec(x_1);
  x_84 = lean_ctor_get(x_20, 1);
  lean_inc(x_84);
  lean_dec(x_20);
  x_85 = lean_ctor_get(x_21, 0);
  lean_inc(x_85);
  lean_dec(x_21);
  x_86 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go(x_2, x_85, x_4, x_5, x_6, x_7, x_84);
  return x_86;
  }
  }
  else
  {
  uint8_t x_87; 
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_2);
  lean_dec(x_1);
  x_87 = !lean_is_exclusive(x_20);
  if (x_87 == 0)
  {
  return x_20;
  }
  else
  {
  lean_object* x_88; lean_object* x_89; lean_object* x_90; 
  x_88 = lean_ctor_get(x_20, 0);
  x_89 = lean_ctor_get(x_20, 1);
  lean_inc(x_89);
  lean_inc(x_88);
  lean_dec(x_20);
  x_90 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_90, 0, x_88);
  lean_ctor_set(x_90, 1, x_89);
  return x_90;
  }
  }
  }
  else
  {
  lean_object* x_91; lean_object* x_92; lean_object* x_93; 
  lean_dec(x_1);
  x_91 = lean_ctor_get(x_17, 1);
  lean_inc(x_91);
  lean_dec(x_17);
  x_92 = lean_ctor_get(x_18, 0);
  lean_inc(x_92);
  lean_dec(x_18);
  x_93 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go(x_2, x_92, x_4, x_5, x_6, x_7, x_91);
  return x_93;
  }
  }
  else
  {
  uint8_t x_94; 
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_2);
  lean_dec(x_1);
  x_94 = !lean_is_exclusive(x_17);
  if (x_94 == 0)
  {
  return x_17;
  }
  else
  {
  lean_object* x_95; lean_object* x_96; lean_object* x_97; 
  x_95 = lean_ctor_get(x_17, 0);
  x_96 = lean_ctor_get(x_17, 1);
  lean_inc(x_96);
  lean_inc(x_95);
  lean_dec(x_17);
  x_97 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_97, 0, x_95);
  lean_ctor_set(x_97, 1, x_96);
  return x_97;
  }
  }
  }
  else
  {
  uint8_t x_98; 
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_2);
  lean_dec(x_1);
  x_98 = !lean_is_exclusive(x_13);
  if (x_98 == 0)
  {
  lean_object* x_99; lean_object* x_100; 
  x_99 = lean_ctor_get(x_13, 0);
  lean_dec(x_99);
  x_100 = lean_box(0);
  lean_ctor_set(x_13, 0, x_100);
  return x_13;
  }
  else
  {
  lean_object* x_101; lean_object* x_102; lean_object* x_103; 
  x_101 = lean_ctor_get(x_13, 1);
  lean_inc(x_101);
  lean_dec(x_13);
  x_102 = lean_box(0);
  x_103 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_103, 0, x_102);
  lean_ctor_set(x_103, 1, x_101);
  return x_103;
  }
  }
  }
  else
  {
  uint8_t x_104; 
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_2);
  lean_dec(x_1);
  x_104 = !lean_is_exclusive(x_9);
  if (x_104 == 0)
  {
  lean_object* x_105; lean_object* x_106; 
  x_105 = lean_ctor_get(x_9, 0);
  lean_dec(x_105);
  x_106 = lean_box(0);
  lean_ctor_set(x_9, 0, x_106);
  return x_9;
  }
  else
  {
  lean_object* x_107; lean_object* x_108; lean_object* x_109; 
  x_107 = lean_ctor_get(x_9, 1);
  lean_inc(x_107);
  lean_dec(x_9);
  x_108 = lean_box(0);
  x_109 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_109, 0, x_108);
  lean_ctor_set(x_109, 1, x_107);
  return x_109;
  }
  }
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__1() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("Elab");
  return x_1;
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__2() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; lean_object* x_3; 
  x_1 = lean_box(0);
  x_2 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__1;
  x_3 = lean_name_mk_string(x_1, x_2);
  return x_3;
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__3() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("definition");
  return x_1;
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__4() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; lean_object* x_3; 
  x_1 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__2;
  x_2 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__3;
  x_3 = lean_name_mk_string(x_1, x_2);
  return x_3;
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__5() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("structural");
  return x_1;
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__6() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; lean_object* x_3; 
  x_1 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__4;
  x_2 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__5;
  x_3 = lean_name_mk_string(x_1, x_2);
  return x_3;
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__7() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("eqns");
  return x_1;
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__8() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; lean_object* x_3; 
  x_1 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__6;
  x_2 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__7;
  x_3 = lean_name_mk_string(x_1, x_2);
  return x_3;
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__9() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("step\n");
  return x_1;
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__10() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; 
  x_1 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__9;
  x_2 = l_Lean_stringToMessageData(x_1);
  return x_2;
  }
  }
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7) {
  _start:
  {
  lean_object* x_8; uint8_t x_9; lean_object* x_10; lean_object* x_23; lean_object* x_24; lean_object* x_25; uint8_t x_26; 
  x_8 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__8;
  x_23 = lean_st_ref_get(x_6, x_7);
  x_24 = lean_ctor_get(x_23, 0);
  lean_inc(x_24);
  x_25 = lean_ctor_get(x_24, 3);
  lean_inc(x_25);
  lean_dec(x_24);
  x_26 = lean_ctor_get_uint8(x_25, sizeof(void*)*1);
  lean_dec(x_25);
  if (x_26 == 0)
  {
  lean_object* x_27; uint8_t x_28; 
  x_27 = lean_ctor_get(x_23, 1);
  lean_inc(x_27);
  lean_dec(x_23);
  x_28 = 0;
  x_9 = x_28;
  x_10 = x_27;
  goto block_22;
  }
  else
  {
  lean_object* x_29; lean_object* x_30; lean_object* x_31; lean_object* x_32; uint8_t x_33; 
  x_29 = lean_ctor_get(x_23, 1);
  lean_inc(x_29);
  lean_dec(x_23);
  x_30 = l___private_Lean_Util_Trace_0__Lean_checkTraceOptionM___at___private_Lean_Meta_Basic_0__Lean_Meta_processPostponedStep___spec__13(x_8, x_3, x_4, x_5, x_6, x_29);
  x_31 = lean_ctor_get(x_30, 0);
  lean_inc(x_31);
  x_32 = lean_ctor_get(x_30, 1);
  lean_inc(x_32);
  lean_dec(x_30);
  x_33 = lean_unbox(x_31);
  lean_dec(x_31);
  x_9 = x_33;
  x_10 = x_32;
  goto block_22;
  }
  block_22:
  {
  if (x_9 == 0)
  {
  lean_object* x_11; lean_object* x_12; 
  x_11 = lean_box(0);
  x_12 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1(x_2, x_1, x_11, x_3, x_4, x_5, x_6, x_10);
  return x_12;
  }
  else
  {
  lean_object* x_13; lean_object* x_14; lean_object* x_15; lean_object* x_16; lean_object* x_17; lean_object* x_18; lean_object* x_19; lean_object* x_20; lean_object* x_21; 
  lean_inc(x_2);
  x_13 = lean_alloc_ctor(5, 1, 0);
  lean_ctor_set(x_13, 0, x_2);
  x_14 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__10;
  x_15 = lean_alloc_ctor(10, 2, 0);
  lean_ctor_set(x_15, 0, x_14);
  lean_ctor_set(x_15, 1, x_13);
  x_16 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__6;
  x_17 = lean_alloc_ctor(10, 2, 0);
  lean_ctor_set(x_17, 0, x_15);
  lean_ctor_set(x_17, 1, x_16);
  x_18 = l_Lean_addTrace___at_Lean_Meta_processPostponed_loop___spec__1(x_8, x_17, x_3, x_4, x_5, x_6, x_10);
  x_19 = lean_ctor_get(x_18, 0);
  lean_inc(x_19);
  x_20 = lean_ctor_get(x_18, 1);
  lean_inc(x_20);
  lean_dec(x_18);
  x_21 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1(x_2, x_1, x_19, x_3, x_4, x_5, x_6, x_20);
  return x_21;
  }
  }
  }
  }
  LEAN_EXPORT lean_object* l_Array_foldlMUnsafe_fold___at___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___spec__1___boxed(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8, lean_object* x_9, lean_object* x_10) {
  _start:
  {
  size_t x_11; size_t x_12; lean_object* x_13; 
  x_11 = lean_unbox_usize(x_3);
  lean_dec(x_3);
  x_12 = lean_unbox_usize(x_4);
  lean_dec(x_4);
  x_13 = l_Array_foldlMUnsafe_fold___at___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___spec__1(x_1, x_2, x_11, x_12, x_5, x_6, x_7, x_8, x_9, x_10);
  lean_dec(x_2);
  return x_13;
  }
  }
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___lambda__1(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7) {
  _start:
  {
  lean_object* x_8; 
  x_8 = l_Lean_Meta_instantiateMVars(x_1, x_3, x_4, x_5, x_6, x_7);
  return x_8;
  }
  }
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___lambda__2(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7) {
  _start:
  {
  lean_object* x_8; lean_object* x_9; lean_object* x_10; lean_object* x_11; lean_object* x_12; lean_object* x_13; 
  x_8 = lean_box(0);
  lean_inc(x_3);
  x_9 = l_Lean_Meta_mkFreshExprSyntheticOpaqueMVar(x_1, x_8, x_3, x_4, x_5, x_6, x_7);
  x_10 = lean_ctor_get(x_9, 0);
  lean_inc(x_10);
  x_11 = lean_ctor_get(x_9, 1);
  lean_inc(x_11);
  lean_dec(x_9);
  x_12 = l_Lean_Expr_mvarId_x21(x_10);
  lean_inc(x_6);
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_3);
  x_13 = l_Lean_Meta_intros(x_12, x_3, x_4, x_5, x_6, x_11);
  if (lean_obj_tag(x_13) == 0)
  {
  lean_object* x_14; lean_object* x_15; lean_object* x_16; lean_object* x_17; lean_object* x_18; uint8_t x_19; 
  x_14 = lean_ctor_get(x_13, 0);
  lean_inc(x_14);
  x_15 = lean_ctor_get(x_13, 1);
  lean_inc(x_15);
  lean_dec(x_13);
  x_16 = lean_ctor_get(x_14, 1);
  lean_inc(x_16);
  lean_dec(x_14);
  lean_inc(x_6);
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_3);
  lean_inc(x_16);
  x_17 = l_Lean_Elab_tryURefl(x_16, x_3, x_4, x_5, x_6, x_15);
  x_18 = lean_ctor_get(x_17, 0);
  lean_inc(x_18);
  x_19 = lean_unbox(x_18);
  lean_dec(x_18);
  if (x_19 == 0)
  {
  lean_object* x_20; lean_object* x_21; 
  x_20 = lean_ctor_get(x_17, 1);
  lean_inc(x_20);
  lean_dec(x_17);
  lean_inc(x_6);
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_3);
  x_21 = l_Lean_Elab_deltaLHS(x_16, x_3, x_4, x_5, x_6, x_20);
  if (lean_obj_tag(x_21) == 0)
  {
  lean_object* x_22; lean_object* x_23; lean_object* x_24; 
  x_22 = lean_ctor_get(x_21, 0);
  lean_inc(x_22);
  x_23 = lean_ctor_get(x_21, 1);
  lean_inc(x_23);
  lean_dec(x_21);
  lean_inc(x_6);
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_3);
  x_24 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go(x_2, x_22, x_3, x_4, x_5, x_6, x_23);
  if (lean_obj_tag(x_24) == 0)
  {
  lean_object* x_25; lean_object* x_26; 
  x_25 = lean_ctor_get(x_24, 1);
  lean_inc(x_25);
  lean_dec(x_24);
  x_26 = l_Lean_Meta_instantiateMVars(x_10, x_3, x_4, x_5, x_6, x_25);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_3);
  return x_26;
  }
  else
  {
  uint8_t x_27; 
  lean_dec(x_10);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  x_27 = !lean_is_exclusive(x_24);
  if (x_27 == 0)
  {
  return x_24;
  }
  else
  {
  lean_object* x_28; lean_object* x_29; lean_object* x_30; 
  x_28 = lean_ctor_get(x_24, 0);
  x_29 = lean_ctor_get(x_24, 1);
  lean_inc(x_29);
  lean_inc(x_28);
  lean_dec(x_24);
  x_30 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_30, 0, x_28);
  lean_ctor_set(x_30, 1, x_29);
  return x_30;
  }
  }
  }
  else
  {
  uint8_t x_31; 
  lean_dec(x_10);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_2);
  x_31 = !lean_is_exclusive(x_21);
  if (x_31 == 0)
  {
  return x_21;
  }
  else
  {
  lean_object* x_32; lean_object* x_33; lean_object* x_34; 
  x_32 = lean_ctor_get(x_21, 0);
  x_33 = lean_ctor_get(x_21, 1);
  lean_inc(x_33);
  lean_inc(x_32);
  lean_dec(x_21);
  x_34 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_34, 0, x_32);
  lean_ctor_set(x_34, 1, x_33);
  return x_34;
  }
  }
  }
  else
  {
  lean_object* x_35; lean_object* x_36; 
  lean_dec(x_16);
  lean_dec(x_2);
  x_35 = lean_ctor_get(x_17, 1);
  lean_inc(x_35);
  lean_dec(x_17);
  x_36 = l_Lean_Meta_instantiateMVars(x_10, x_3, x_4, x_5, x_6, x_35);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_3);
  return x_36;
  }
  }
  else
  {
  uint8_t x_37; 
  lean_dec(x_10);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_2);
  x_37 = !lean_is_exclusive(x_13);
  if (x_37 == 0)
  {
  return x_13;
  }
  else
  {
  lean_object* x_38; lean_object* x_39; lean_object* x_40; 
  x_38 = lean_ctor_get(x_13, 0);
  x_39 = lean_ctor_get(x_13, 1);
  lean_inc(x_39);
  lean_inc(x_38);
  lean_dec(x_13);
  x_40 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_40, 0, x_38);
  lean_ctor_set(x_40, 1, x_39);
  return x_40;
  }
  }
  }
  }
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___lambda__3(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8) {
  _start:
  {
  lean_object* x_9; lean_object* x_10; 
  x_9 = lean_alloc_closure((void*)(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___lambda__2), 7, 2);
  lean_closure_set(x_9, 0, x_1);
  lean_closure_set(x_9, 1, x_2);
  x_10 = l_Lean_Meta_withNewMCtxDepth___at___private_Lean_Meta_Instances_0__Lean_Meta_mkInstanceKey___spec__1___rarg(x_9, x_4, x_5, x_6, x_7, x_8);
  return x_10;
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___closed__1() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("proving: ");
  return x_1;
  }
  }
  static lean_object* _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___closed__2() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; 
  x_1 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___closed__1;
  x_2 = l_Lean_stringToMessageData(x_1);
  return x_2;
  }
  }
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7) {
  _start:
  {
  lean_object* x_8; uint8_t x_9; lean_object* x_10; lean_object* x_23; lean_object* x_24; lean_object* x_25; uint8_t x_26; 
  x_8 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__8;
  x_23 = lean_st_ref_get(x_6, x_7);
  x_24 = lean_ctor_get(x_23, 0);
  lean_inc(x_24);
  x_25 = lean_ctor_get(x_24, 3);
  lean_inc(x_25);
  lean_dec(x_24);
  x_26 = lean_ctor_get_uint8(x_25, sizeof(void*)*1);
  lean_dec(x_25);
  if (x_26 == 0)
  {
  lean_object* x_27; uint8_t x_28; 
  x_27 = lean_ctor_get(x_23, 1);
  lean_inc(x_27);
  lean_dec(x_23);
  x_28 = 0;
  x_9 = x_28;
  x_10 = x_27;
  goto block_22;
  }
  else
  {
  lean_object* x_29; lean_object* x_30; lean_object* x_31; lean_object* x_32; uint8_t x_33; 
  x_29 = lean_ctor_get(x_23, 1);
  lean_inc(x_29);
  lean_dec(x_23);
  x_30 = l___private_Lean_Util_Trace_0__Lean_checkTraceOptionM___at___private_Lean_Meta_Basic_0__Lean_Meta_processPostponedStep___spec__13(x_8, x_3, x_4, x_5, x_6, x_29);
  x_31 = lean_ctor_get(x_30, 0);
  lean_inc(x_31);
  x_32 = lean_ctor_get(x_30, 1);
  lean_inc(x_32);
  lean_dec(x_30);
  x_33 = lean_unbox(x_31);
  lean_dec(x_31);
  x_9 = x_33;
  x_10 = x_32;
  goto block_22;
  }
  block_22:
  {
  if (x_9 == 0)
  {
  lean_object* x_11; lean_object* x_12; 
  x_11 = lean_box(0);
  x_12 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___lambda__3(x_2, x_1, x_11, x_3, x_4, x_5, x_6, x_10);
  return x_12;
  }
  else
  {
  lean_object* x_13; lean_object* x_14; lean_object* x_15; lean_object* x_16; lean_object* x_17; lean_object* x_18; lean_object* x_19; lean_object* x_20; lean_object* x_21; 
  lean_inc(x_2);
  x_13 = lean_alloc_ctor(2, 1, 0);
  lean_ctor_set(x_13, 0, x_2);
  x_14 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___closed__2;
  x_15 = lean_alloc_ctor(10, 2, 0);
  lean_ctor_set(x_15, 0, x_14);
  lean_ctor_set(x_15, 1, x_13);
  x_16 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__6;
  x_17 = lean_alloc_ctor(10, 2, 0);
  lean_ctor_set(x_17, 0, x_15);
  lean_ctor_set(x_17, 1, x_16);
  x_18 = l_Lean_addTrace___at_Lean_Meta_processPostponed_loop___spec__1(x_8, x_17, x_3, x_4, x_5, x_6, x_10);
  x_19 = lean_ctor_get(x_18, 0);
  lean_inc(x_19);
  x_20 = lean_ctor_get(x_18, 1);
  lean_inc(x_20);
  lean_dec(x_18);
  x_21 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___lambda__3(x_2, x_1, x_19, x_3, x_4, x_5, x_6, x_20);
  lean_dec(x_19);
  return x_21;
  }
  }
  }
  }
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___lambda__1___boxed(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7) {
  _start:
  {
  lean_object* x_8; 
  x_8 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___lambda__1(x_1, x_2, x_3, x_4, x_5, x_6, x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_3);
  lean_dec(x_2);
  return x_8;
  }
  }
  LEAN_EXPORT lean_object* l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___lambda__3___boxed(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8) {
  _start:
  {
  lean_object* x_9; 
  x_9 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___lambda__3(x_1, x_2, x_3, x_4, x_5, x_6, x_7, x_8);
  lean_dec(x_3);
  return x_9;
  }
  }
  static lean_object* _init_l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___lambda__1___closed__1() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("eq");
  return x_1;
  }
  }
  static lean_object* _init_l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___lambda__1___closed__2() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; lean_object* x_3; 
  x_1 = lean_box(0);
  x_2 = l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___lambda__1___closed__1;
  x_3 = lean_name_mk_string(x_1, x_2);
  return x_3;
  }
  }
  LEAN_EXPORT lean_object* l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___lambda__1(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8, lean_object* x_9, lean_object* x_10, lean_object* x_11, lean_object* x_12) {
  _start:
  {
  lean_object* x_13; lean_object* x_14; lean_object* x_15; lean_object* x_16; lean_object* x_17; lean_object* x_18; lean_object* x_19; 
  x_13 = lean_unsigned_to_nat(1u);
  x_14 = lean_nat_add(x_1, x_13);
  x_15 = l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___lambda__1___closed__2;
  x_16 = lean_name_append_index_after(x_15, x_14);
  x_17 = l_Lean_Name_append(x_2, x_16);
  lean_inc(x_17);
  x_18 = lean_array_push(x_6, x_17);
  lean_inc(x_11);
  lean_inc(x_10);
  lean_inc(x_9);
  lean_inc(x_8);
  lean_inc(x_4);
  x_19 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof(x_3, x_4, x_8, x_9, x_10, x_11, x_12);
  if (lean_obj_tag(x_19) == 0)
  {
  lean_object* x_20; lean_object* x_21; lean_object* x_22; lean_object* x_23; lean_object* x_24; lean_object* x_25; lean_object* x_26; 
  x_20 = lean_ctor_get(x_19, 0);
  lean_inc(x_20);
  x_21 = lean_ctor_get(x_19, 1);
  lean_inc(x_21);
  lean_dec(x_19);
  x_22 = lean_ctor_get(x_5, 1);
  lean_inc(x_22);
  x_23 = lean_alloc_ctor(0, 3, 0);
  lean_ctor_set(x_23, 0, x_17);
  lean_ctor_set(x_23, 1, x_22);
  lean_ctor_set(x_23, 2, x_4);
  x_24 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_24, 0, x_23);
  lean_ctor_set(x_24, 1, x_20);
  x_25 = lean_alloc_ctor(2, 1, 0);
  lean_ctor_set(x_25, 0, x_24);
  x_26 = l_Lean_addDecl___at_Lean_Meta_mkAuxLemma___spec__1(x_25, x_8, x_9, x_10, x_11, x_21);
  lean_dec(x_11);
  lean_dec(x_9);
  lean_dec(x_8);
  if (lean_obj_tag(x_26) == 0)
  {
  uint8_t x_27; 
  x_27 = !lean_is_exclusive(x_26);
  if (x_27 == 0)
  {
  lean_object* x_28; lean_object* x_29; 
  x_28 = lean_ctor_get(x_26, 0);
  lean_dec(x_28);
  x_29 = lean_alloc_ctor(1, 1, 0);
  lean_ctor_set(x_29, 0, x_18);
  lean_ctor_set(x_26, 0, x_29);
  return x_26;
  }
  else
  {
  lean_object* x_30; lean_object* x_31; lean_object* x_32; 
  x_30 = lean_ctor_get(x_26, 1);
  lean_inc(x_30);
  lean_dec(x_26);
  x_31 = lean_alloc_ctor(1, 1, 0);
  lean_ctor_set(x_31, 0, x_18);
  x_32 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_32, 0, x_31);
  lean_ctor_set(x_32, 1, x_30);
  return x_32;
  }
  }
  else
  {
  uint8_t x_33; 
  lean_dec(x_18);
  x_33 = !lean_is_exclusive(x_26);
  if (x_33 == 0)
  {
  return x_26;
  }
  else
  {
  lean_object* x_34; lean_object* x_35; lean_object* x_36; 
  x_34 = lean_ctor_get(x_26, 0);
  x_35 = lean_ctor_get(x_26, 1);
  lean_inc(x_35);
  lean_inc(x_34);
  lean_dec(x_26);
  x_36 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_36, 0, x_34);
  lean_ctor_set(x_36, 1, x_35);
  return x_36;
  }
  }
  }
  else
  {
  uint8_t x_37; 
  lean_dec(x_18);
  lean_dec(x_17);
  lean_dec(x_11);
  lean_dec(x_10);
  lean_dec(x_9);
  lean_dec(x_8);
  lean_dec(x_4);
  x_37 = !lean_is_exclusive(x_19);
  if (x_37 == 0)
  {
  return x_19;
  }
  else
  {
  lean_object* x_38; lean_object* x_39; lean_object* x_40; 
  x_38 = lean_ctor_get(x_19, 0);
  x_39 = lean_ctor_get(x_19, 1);
  lean_inc(x_39);
  lean_inc(x_38);
  lean_dec(x_19);
  x_40 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_40, 0, x_38);
  lean_ctor_set(x_40, 1, x_39);
  return x_40;
  }
  }
  }
  }
  LEAN_EXPORT lean_object* l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8, lean_object* x_9, lean_object* x_10, lean_object* x_11, lean_object* x_12, lean_object* x_13, lean_object* x_14) {
  _start:
  {
  uint8_t x_15; 
  x_15 = lean_nat_dec_le(x_7, x_6);
  if (x_15 == 0)
  {
  lean_object* x_16; uint8_t x_17; 
  x_16 = lean_unsigned_to_nat(0u);
  x_17 = lean_nat_dec_eq(x_5, x_16);
  if (x_17 == 0)
  {
  lean_object* x_18; lean_object* x_19; lean_object* x_20; lean_object* x_21; lean_object* x_22; uint8_t x_23; lean_object* x_24; lean_object* x_66; lean_object* x_67; lean_object* x_68; uint8_t x_69; 
  x_18 = lean_unsigned_to_nat(1u);
  x_19 = lean_nat_sub(x_5, x_18);
  lean_dec(x_5);
  x_20 = l_Lean_instInhabitedExpr;
  x_21 = lean_array_get(x_20, x_2, x_6);
  x_22 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__8;
  x_66 = lean_st_ref_get(x_13, x_14);
  x_67 = lean_ctor_get(x_66, 0);
  lean_inc(x_67);
  x_68 = lean_ctor_get(x_67, 3);
  lean_inc(x_68);
  lean_dec(x_67);
  x_69 = lean_ctor_get_uint8(x_68, sizeof(void*)*1);
  lean_dec(x_68);
  if (x_69 == 0)
  {
  lean_object* x_70; uint8_t x_71; 
  x_70 = lean_ctor_get(x_66, 1);
  lean_inc(x_70);
  lean_dec(x_66);
  x_71 = 0;
  x_23 = x_71;
  x_24 = x_70;
  goto block_65;
  }
  else
  {
  lean_object* x_72; lean_object* x_73; lean_object* x_74; lean_object* x_75; uint8_t x_76; 
  x_72 = lean_ctor_get(x_66, 1);
  lean_inc(x_72);
  lean_dec(x_66);
  x_73 = l___private_Lean_Util_Trace_0__Lean_checkTraceOptionM___at___private_Lean_Meta_Basic_0__Lean_Meta_processPostponedStep___spec__13(x_22, x_10, x_11, x_12, x_13, x_72);
  x_74 = lean_ctor_get(x_73, 0);
  lean_inc(x_74);
  x_75 = lean_ctor_get(x_73, 1);
  lean_inc(x_75);
  lean_dec(x_73);
  x_76 = lean_unbox(x_74);
  lean_dec(x_74);
  x_23 = x_76;
  x_24 = x_75;
  goto block_65;
  }
  block_65:
  {
  if (x_23 == 0)
  {
  lean_object* x_25; lean_object* x_26; 
  x_25 = lean_box(0);
  lean_inc(x_13);
  lean_inc(x_12);
  lean_inc(x_11);
  lean_inc(x_10);
  lean_inc(x_3);
  x_26 = l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___lambda__1(x_6, x_4, x_3, x_21, x_1, x_9, x_25, x_10, x_11, x_12, x_13, x_24);
  if (lean_obj_tag(x_26) == 0)
  {
  lean_object* x_27; 
  x_27 = lean_ctor_get(x_26, 0);
  lean_inc(x_27);
  if (lean_obj_tag(x_27) == 0)
  {
  uint8_t x_28; 
  lean_dec(x_19);
  lean_dec(x_13);
  lean_dec(x_12);
  lean_dec(x_11);
  lean_dec(x_10);
  lean_dec(x_6);
  lean_dec(x_3);
  x_28 = !lean_is_exclusive(x_26);
  if (x_28 == 0)
  {
  lean_object* x_29; lean_object* x_30; 
  x_29 = lean_ctor_get(x_26, 0);
  lean_dec(x_29);
  x_30 = lean_ctor_get(x_27, 0);
  lean_inc(x_30);
  lean_dec(x_27);
  lean_ctor_set(x_26, 0, x_30);
  return x_26;
  }
  else
  {
  lean_object* x_31; lean_object* x_32; lean_object* x_33; 
  x_31 = lean_ctor_get(x_26, 1);
  lean_inc(x_31);
  lean_dec(x_26);
  x_32 = lean_ctor_get(x_27, 0);
  lean_inc(x_32);
  lean_dec(x_27);
  x_33 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_33, 0, x_32);
  lean_ctor_set(x_33, 1, x_31);
  return x_33;
  }
  }
  else
  {
  lean_object* x_34; lean_object* x_35; lean_object* x_36; 
  x_34 = lean_ctor_get(x_26, 1);
  lean_inc(x_34);
  lean_dec(x_26);
  x_35 = lean_ctor_get(x_27, 0);
  lean_inc(x_35);
  lean_dec(x_27);
  x_36 = lean_nat_add(x_6, x_8);
  lean_dec(x_6);
  x_5 = x_19;
  x_6 = x_36;
  x_9 = x_35;
  x_14 = x_34;
  goto _start;
  }
  }
  else
  {
  uint8_t x_38; 
  lean_dec(x_19);
  lean_dec(x_13);
  lean_dec(x_12);
  lean_dec(x_11);
  lean_dec(x_10);
  lean_dec(x_6);
  lean_dec(x_3);
  x_38 = !lean_is_exclusive(x_26);
  if (x_38 == 0)
  {
  return x_26;
  }
  else
  {
  lean_object* x_39; lean_object* x_40; lean_object* x_41; 
  x_39 = lean_ctor_get(x_26, 0);
  x_40 = lean_ctor_get(x_26, 1);
  lean_inc(x_40);
  lean_inc(x_39);
  lean_dec(x_26);
  x_41 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_41, 0, x_39);
  lean_ctor_set(x_41, 1, x_40);
  return x_41;
  }
  }
  }
  else
  {
  lean_object* x_42; lean_object* x_43; lean_object* x_44; lean_object* x_45; lean_object* x_46; lean_object* x_47; lean_object* x_48; lean_object* x_49; 
  lean_inc(x_21);
  x_42 = lean_alloc_ctor(2, 1, 0);
  lean_ctor_set(x_42, 0, x_21);
  x_43 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__6;
  x_44 = lean_alloc_ctor(10, 2, 0);
  lean_ctor_set(x_44, 0, x_43);
  lean_ctor_set(x_44, 1, x_42);
  x_45 = lean_alloc_ctor(10, 2, 0);
  lean_ctor_set(x_45, 0, x_44);
  lean_ctor_set(x_45, 1, x_43);
  x_46 = l_Lean_addTrace___at_Lean_Meta_processPostponed_loop___spec__1(x_22, x_45, x_10, x_11, x_12, x_13, x_24);
  x_47 = lean_ctor_get(x_46, 0);
  lean_inc(x_47);
  x_48 = lean_ctor_get(x_46, 1);
  lean_inc(x_48);
  lean_dec(x_46);
  lean_inc(x_13);
  lean_inc(x_12);
  lean_inc(x_11);
  lean_inc(x_10);
  lean_inc(x_3);
  x_49 = l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___lambda__1(x_6, x_4, x_3, x_21, x_1, x_9, x_47, x_10, x_11, x_12, x_13, x_48);
  lean_dec(x_47);
  if (lean_obj_tag(x_49) == 0)
  {
  lean_object* x_50; 
  x_50 = lean_ctor_get(x_49, 0);
  lean_inc(x_50);
  if (lean_obj_tag(x_50) == 0)
  {
  uint8_t x_51; 
  lean_dec(x_19);
  lean_dec(x_13);
  lean_dec(x_12);
  lean_dec(x_11);
  lean_dec(x_10);
  lean_dec(x_6);
  lean_dec(x_3);
  x_51 = !lean_is_exclusive(x_49);
  if (x_51 == 0)
  {
  lean_object* x_52; lean_object* x_53; 
  x_52 = lean_ctor_get(x_49, 0);
  lean_dec(x_52);
  x_53 = lean_ctor_get(x_50, 0);
  lean_inc(x_53);
  lean_dec(x_50);
  lean_ctor_set(x_49, 0, x_53);
  return x_49;
  }
  else
  {
  lean_object* x_54; lean_object* x_55; lean_object* x_56; 
  x_54 = lean_ctor_get(x_49, 1);
  lean_inc(x_54);
  lean_dec(x_49);
  x_55 = lean_ctor_get(x_50, 0);
  lean_inc(x_55);
  lean_dec(x_50);
  x_56 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_56, 0, x_55);
  lean_ctor_set(x_56, 1, x_54);
  return x_56;
  }
  }
  else
  {
  lean_object* x_57; lean_object* x_58; lean_object* x_59; 
  x_57 = lean_ctor_get(x_49, 1);
  lean_inc(x_57);
  lean_dec(x_49);
  x_58 = lean_ctor_get(x_50, 0);
  lean_inc(x_58);
  lean_dec(x_50);
  x_59 = lean_nat_add(x_6, x_8);
  lean_dec(x_6);
  x_5 = x_19;
  x_6 = x_59;
  x_9 = x_58;
  x_14 = x_57;
  goto _start;
  }
  }
  else
  {
  uint8_t x_61; 
  lean_dec(x_19);
  lean_dec(x_13);
  lean_dec(x_12);
  lean_dec(x_11);
  lean_dec(x_10);
  lean_dec(x_6);
  lean_dec(x_3);
  x_61 = !lean_is_exclusive(x_49);
  if (x_61 == 0)
  {
  return x_49;
  }
  else
  {
  lean_object* x_62; lean_object* x_63; lean_object* x_64; 
  x_62 = lean_ctor_get(x_49, 0);
  x_63 = lean_ctor_get(x_49, 1);
  lean_inc(x_63);
  lean_inc(x_62);
  lean_dec(x_49);
  x_64 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_64, 0, x_62);
  lean_ctor_set(x_64, 1, x_63);
  return x_64;
  }
  }
  }
  }
  }
  else
  {
  lean_object* x_77; 
  lean_dec(x_13);
  lean_dec(x_12);
  lean_dec(x_11);
  lean_dec(x_10);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_3);
  x_77 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_77, 0, x_9);
  lean_ctor_set(x_77, 1, x_14);
  return x_77;
  }
  }
  else
  {
  lean_object* x_78; 
  lean_dec(x_13);
  lean_dec(x_12);
  lean_dec(x_11);
  lean_dec(x_10);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_3);
  x_78 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_78, 0, x_9);
  lean_ctor_set(x_78, 1, x_14);
  return x_78;
  }
  }
  }
  static lean_object* _init_l_Lean_Elab_Structural_mkEqns___lambda__1___closed__1() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; 
  x_1 = lean_unsigned_to_nat(1u);
  x_2 = lean_mk_empty_array_with_capacity(x_1);
  return x_2;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_mkEqns___lambda__1(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8) {
  _start:
  {
  lean_object* x_9; lean_object* x_10; lean_object* x_11; lean_object* x_12; lean_object* x_13; lean_object* x_14; lean_object* x_15; 
  x_9 = lean_ctor_get(x_1, 1);
  lean_inc(x_9);
  x_10 = lean_box(0);
  x_11 = l_List_mapTRAux___at_Lean_mkConstWithLevelParams___spec__1(x_9, x_10);
  x_12 = lean_ctor_get(x_1, 0);
  lean_inc(x_12);
  lean_dec(x_1);
  lean_inc(x_12);
  x_13 = l_Lean_mkConst(x_12, x_11);
  x_14 = l_Lean_mkAppN(x_13, x_2);
  lean_inc(x_7);
  lean_inc(x_6);
  lean_inc(x_5);
  lean_inc(x_4);
  x_15 = l_Lean_Meta_mkEq(x_14, x_3, x_4, x_5, x_6, x_7, x_8);
  if (lean_obj_tag(x_15) == 0)
  {
  lean_object* x_16; lean_object* x_17; lean_object* x_18; lean_object* x_19; lean_object* x_20; lean_object* x_21; lean_object* x_22; lean_object* x_23; lean_object* x_24; lean_object* x_25; 
  x_16 = lean_ctor_get(x_15, 0);
  lean_inc(x_16);
  x_17 = lean_ctor_get(x_15, 1);
  lean_inc(x_17);
  lean_dec(x_15);
  x_18 = lean_box(0);
  lean_inc(x_4);
  x_19 = l_Lean_Meta_mkFreshExprSyntheticOpaqueMVar(x_16, x_18, x_4, x_5, x_6, x_7, x_17);
  x_20 = lean_ctor_get(x_19, 0);
  lean_inc(x_20);
  x_21 = lean_ctor_get(x_19, 1);
  lean_inc(x_21);
  lean_dec(x_19);
  x_22 = l_Lean_Elab_Structural_mkEqns___lambda__1___closed__1;
  x_23 = lean_array_push(x_22, x_12);
  x_24 = l_Lean_Expr_mvarId_x21(x_20);
  lean_dec(x_20);
  x_25 = l_Lean_Elab_Eqns_mkEqnTypes(x_23, x_24, x_4, x_5, x_6, x_7, x_21);
  return x_25;
  }
  else
  {
  uint8_t x_26; 
  lean_dec(x_12);
  lean_dec(x_7);
  lean_dec(x_6);
  lean_dec(x_5);
  lean_dec(x_4);
  x_26 = !lean_is_exclusive(x_15);
  if (x_26 == 0)
  {
  return x_15;
  }
  else
  {
  lean_object* x_27; lean_object* x_28; lean_object* x_29; 
  x_27 = lean_ctor_get(x_15, 0);
  x_28 = lean_ctor_get(x_15, 1);
  lean_inc(x_28);
  lean_inc(x_27);
  lean_dec(x_15);
  x_29 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_29, 0, x_27);
  lean_ctor_set(x_29, 1, x_28);
  return x_29;
  }
  }
  }
  }
  static lean_object* _init_l_Lean_Elab_Structural_mkEqns___closed__1() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; 
  x_1 = lean_unsigned_to_nat(0u);
  x_2 = lean_mk_empty_array_with_capacity(x_1);
  return x_2;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_mkEqns(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6) {
  _start:
  {
  lean_object* x_7; lean_object* x_8; lean_object* x_9; uint8_t x_10; 
  x_7 = lean_ctor_get(x_1, 3);
  lean_inc(x_7);
  lean_inc(x_1);
  x_8 = lean_alloc_closure((void*)(l_Lean_Elab_Structural_mkEqns___lambda__1), 8, 1);
  lean_closure_set(x_8, 0, x_1);
  x_9 = lean_alloc_closure((void*)(l_Lean_Meta_lambdaTelescope___at_Lean_Meta_MatcherApp_addArg___spec__2___rarg), 7, 2);
  lean_closure_set(x_9, 0, x_7);
  lean_closure_set(x_9, 1, x_8);
  x_10 = !lean_is_exclusive(x_4);
  if (x_10 == 0)
  {
  lean_object* x_11; lean_object* x_12; uint8_t x_13; lean_object* x_14; lean_object* x_15; 
  x_11 = lean_ctor_get(x_4, 0);
  x_12 = l_Lean_Meta_tactic_hygienic;
  x_13 = 0;
  x_14 = l_Lean_Option_set___at_Lean_Meta_withPPInaccessibleNamesImp___spec__2(x_11, x_12, x_13);
  lean_ctor_set(x_4, 0, x_14);
  lean_inc(x_5);
  lean_inc(x_4);
  lean_inc(x_3);
  lean_inc(x_2);
  x_15 = l_Lean_Meta_withNewMCtxDepth___at___private_Lean_Meta_Instances_0__Lean_Meta_mkInstanceKey___spec__1___rarg(x_9, x_2, x_3, x_4, x_5, x_6);
  if (lean_obj_tag(x_15) == 0)
  {
  lean_object* x_16; lean_object* x_17; lean_object* x_18; lean_object* x_19; lean_object* x_20; lean_object* x_21; lean_object* x_22; lean_object* x_23; lean_object* x_24; lean_object* x_25; lean_object* x_26; lean_object* x_27; lean_object* x_28; 
  x_16 = lean_ctor_get(x_15, 0);
  lean_inc(x_16);
  x_17 = lean_ctor_get(x_15, 1);
  lean_inc(x_17);
  lean_dec(x_15);
  x_18 = lean_st_ref_get(x_5, x_17);
  x_19 = lean_ctor_get(x_18, 0);
  lean_inc(x_19);
  x_20 = lean_ctor_get(x_18, 1);
  lean_inc(x_20);
  lean_dec(x_18);
  x_21 = lean_ctor_get(x_19, 0);
  lean_inc(x_21);
  lean_dec(x_19);
  x_22 = lean_ctor_get(x_1, 0);
  lean_inc(x_22);
  x_23 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor(x_21, x_22);
  x_24 = lean_array_get_size(x_16);
  x_25 = lean_unsigned_to_nat(0u);
  x_26 = lean_unsigned_to_nat(1u);
  x_27 = l_Lean_Elab_Structural_mkEqns___closed__1;
  lean_inc(x_24);
  x_28 = l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1(x_1, x_16, x_22, x_23, x_24, x_25, x_24, x_26, x_27, x_2, x_3, x_4, x_5, x_20);
  lean_dec(x_24);
  lean_dec(x_23);
  lean_dec(x_16);
  lean_dec(x_1);
  if (lean_obj_tag(x_28) == 0)
  {
  uint8_t x_29; 
  x_29 = !lean_is_exclusive(x_28);
  if (x_29 == 0)
  {
  return x_28;
  }
  else
  {
  lean_object* x_30; lean_object* x_31; lean_object* x_32; 
  x_30 = lean_ctor_get(x_28, 0);
  x_31 = lean_ctor_get(x_28, 1);
  lean_inc(x_31);
  lean_inc(x_30);
  lean_dec(x_28);
  x_32 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_32, 0, x_30);
  lean_ctor_set(x_32, 1, x_31);
  return x_32;
  }
  }
  else
  {
  uint8_t x_33; 
  x_33 = !lean_is_exclusive(x_28);
  if (x_33 == 0)
  {
  return x_28;
  }
  else
  {
  lean_object* x_34; lean_object* x_35; lean_object* x_36; 
  x_34 = lean_ctor_get(x_28, 0);
  x_35 = lean_ctor_get(x_28, 1);
  lean_inc(x_35);
  lean_inc(x_34);
  lean_dec(x_28);
  x_36 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_36, 0, x_34);
  lean_ctor_set(x_36, 1, x_35);
  return x_36;
  }
  }
  }
  else
  {
  uint8_t x_37; 
  lean_dec(x_4);
  lean_dec(x_5);
  lean_dec(x_3);
  lean_dec(x_2);
  lean_dec(x_1);
  x_37 = !lean_is_exclusive(x_15);
  if (x_37 == 0)
  {
  return x_15;
  }
  else
  {
  lean_object* x_38; lean_object* x_39; lean_object* x_40; 
  x_38 = lean_ctor_get(x_15, 0);
  x_39 = lean_ctor_get(x_15, 1);
  lean_inc(x_39);
  lean_inc(x_38);
  lean_dec(x_15);
  x_40 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_40, 0, x_38);
  lean_ctor_set(x_40, 1, x_39);
  return x_40;
  }
  }
  }
  else
  {
  lean_object* x_41; lean_object* x_42; lean_object* x_43; lean_object* x_44; lean_object* x_45; lean_object* x_46; lean_object* x_47; lean_object* x_48; lean_object* x_49; uint8_t x_50; lean_object* x_51; lean_object* x_52; lean_object* x_53; 
  x_41 = lean_ctor_get(x_4, 0);
  x_42 = lean_ctor_get(x_4, 1);
  x_43 = lean_ctor_get(x_4, 2);
  x_44 = lean_ctor_get(x_4, 3);
  x_45 = lean_ctor_get(x_4, 4);
  x_46 = lean_ctor_get(x_4, 5);
  x_47 = lean_ctor_get(x_4, 6);
  x_48 = lean_ctor_get(x_4, 7);
  lean_inc(x_48);
  lean_inc(x_47);
  lean_inc(x_46);
  lean_inc(x_45);
  lean_inc(x_44);
  lean_inc(x_43);
  lean_inc(x_42);
  lean_inc(x_41);
  lean_dec(x_4);
  x_49 = l_Lean_Meta_tactic_hygienic;
  x_50 = 0;
  x_51 = l_Lean_Option_set___at_Lean_Meta_withPPInaccessibleNamesImp___spec__2(x_41, x_49, x_50);
  x_52 = lean_alloc_ctor(0, 8, 0);
  lean_ctor_set(x_52, 0, x_51);
  lean_ctor_set(x_52, 1, x_42);
  lean_ctor_set(x_52, 2, x_43);
  lean_ctor_set(x_52, 3, x_44);
  lean_ctor_set(x_52, 4, x_45);
  lean_ctor_set(x_52, 5, x_46);
  lean_ctor_set(x_52, 6, x_47);
  lean_ctor_set(x_52, 7, x_48);
  lean_inc(x_5);
  lean_inc(x_52);
  lean_inc(x_3);
  lean_inc(x_2);
  x_53 = l_Lean_Meta_withNewMCtxDepth___at___private_Lean_Meta_Instances_0__Lean_Meta_mkInstanceKey___spec__1___rarg(x_9, x_2, x_3, x_52, x_5, x_6);
  if (lean_obj_tag(x_53) == 0)
  {
  lean_object* x_54; lean_object* x_55; lean_object* x_56; lean_object* x_57; lean_object* x_58; lean_object* x_59; lean_object* x_60; lean_object* x_61; lean_object* x_62; lean_object* x_63; lean_object* x_64; lean_object* x_65; lean_object* x_66; 
  x_54 = lean_ctor_get(x_53, 0);
  lean_inc(x_54);
  x_55 = lean_ctor_get(x_53, 1);
  lean_inc(x_55);
  lean_dec(x_53);
  x_56 = lean_st_ref_get(x_5, x_55);
  x_57 = lean_ctor_get(x_56, 0);
  lean_inc(x_57);
  x_58 = lean_ctor_get(x_56, 1);
  lean_inc(x_58);
  lean_dec(x_56);
  x_59 = lean_ctor_get(x_57, 0);
  lean_inc(x_59);
  lean_dec(x_57);
  x_60 = lean_ctor_get(x_1, 0);
  lean_inc(x_60);
  x_61 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor(x_59, x_60);
  x_62 = lean_array_get_size(x_54);
  x_63 = lean_unsigned_to_nat(0u);
  x_64 = lean_unsigned_to_nat(1u);
  x_65 = l_Lean_Elab_Structural_mkEqns___closed__1;
  lean_inc(x_62);
  x_66 = l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1(x_1, x_54, x_60, x_61, x_62, x_63, x_62, x_64, x_65, x_2, x_3, x_52, x_5, x_58);
  lean_dec(x_62);
  lean_dec(x_61);
  lean_dec(x_54);
  lean_dec(x_1);
  if (lean_obj_tag(x_66) == 0)
  {
  lean_object* x_67; lean_object* x_68; lean_object* x_69; lean_object* x_70; 
  x_67 = lean_ctor_get(x_66, 0);
  lean_inc(x_67);
  x_68 = lean_ctor_get(x_66, 1);
  lean_inc(x_68);
  if (lean_is_exclusive(x_66)) {
   lean_ctor_release(x_66, 0);
   lean_ctor_release(x_66, 1);
   x_69 = x_66;
  } else {
   lean_dec_ref(x_66);
   x_69 = lean_box(0);
  }
  if (lean_is_scalar(x_69)) {
   x_70 = lean_alloc_ctor(0, 2, 0);
  } else {
   x_70 = x_69;
  }
  lean_ctor_set(x_70, 0, x_67);
  lean_ctor_set(x_70, 1, x_68);
  return x_70;
  }
  else
  {
  lean_object* x_71; lean_object* x_72; lean_object* x_73; lean_object* x_74; 
  x_71 = lean_ctor_get(x_66, 0);
  lean_inc(x_71);
  x_72 = lean_ctor_get(x_66, 1);
  lean_inc(x_72);
  if (lean_is_exclusive(x_66)) {
   lean_ctor_release(x_66, 0);
   lean_ctor_release(x_66, 1);
   x_73 = x_66;
  } else {
   lean_dec_ref(x_66);
   x_73 = lean_box(0);
  }
  if (lean_is_scalar(x_73)) {
   x_74 = lean_alloc_ctor(1, 2, 0);
  } else {
   x_74 = x_73;
  }
  lean_ctor_set(x_74, 0, x_71);
  lean_ctor_set(x_74, 1, x_72);
  return x_74;
  }
  }
  else
  {
  lean_object* x_75; lean_object* x_76; lean_object* x_77; lean_object* x_78; 
  lean_dec(x_52);
  lean_dec(x_5);
  lean_dec(x_3);
  lean_dec(x_2);
  lean_dec(x_1);
  x_75 = lean_ctor_get(x_53, 0);
  lean_inc(x_75);
  x_76 = lean_ctor_get(x_53, 1);
  lean_inc(x_76);
  if (lean_is_exclusive(x_53)) {
   lean_ctor_release(x_53, 0);
   lean_ctor_release(x_53, 1);
   x_77 = x_53;
  } else {
   lean_dec_ref(x_53);
   x_77 = lean_box(0);
  }
  if (lean_is_scalar(x_77)) {
   x_78 = lean_alloc_ctor(1, 2, 0);
  } else {
   x_78 = x_77;
  }
  lean_ctor_set(x_78, 0, x_75);
  lean_ctor_set(x_78, 1, x_76);
  return x_78;
  }
  }
  }
  }
  LEAN_EXPORT lean_object* l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___lambda__1___boxed(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8, lean_object* x_9, lean_object* x_10, lean_object* x_11, lean_object* x_12) {
  _start:
  {
  lean_object* x_13; 
  x_13 = l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___lambda__1(x_1, x_2, x_3, x_4, x_5, x_6, x_7, x_8, x_9, x_10, x_11, x_12);
  lean_dec(x_7);
  lean_dec(x_5);
  lean_dec(x_2);
  lean_dec(x_1);
  return x_13;
  }
  }
  LEAN_EXPORT lean_object* l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___boxed(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8, lean_object* x_9, lean_object* x_10, lean_object* x_11, lean_object* x_12, lean_object* x_13, lean_object* x_14) {
  _start:
  {
  lean_object* x_15; 
  x_15 = l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1(x_1, x_2, x_3, x_4, x_5, x_6, x_7, x_8, x_9, x_10, x_11, x_12, x_13, x_14);
  lean_dec(x_8);
  lean_dec(x_7);
  lean_dec(x_4);
  lean_dec(x_2);
  lean_dec(x_1);
  return x_15;
  }
  }
  static lean_object* _init_l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1627____closed__1() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_mk_string("structEqInfo");
  return x_1;
  }
  }
  static lean_object* _init_l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1627____closed__2() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; lean_object* x_3; 
  x_1 = lean_box(0);
  x_2 = l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1627____closed__1;
  x_3 = lean_name_mk_string(x_1, x_2);
  return x_3;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1627_(lean_object* x_1) {
  _start:
  {
  lean_object* x_2; lean_object* x_3; lean_object* x_4; 
  x_2 = l_Lean_Elab_Structural_instInhabitedEqnInfo;
  x_3 = l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1627____closed__2;
  x_4 = l_Lean_mkMapDeclarationExtension___rarg(x_2, x_3, x_1);
  return x_4;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_eqnInfoExt___elambda__1(lean_object* x_1) {
  _start:
  {
  lean_object* x_2; 
  x_2 = lean_box(0);
  return x_2;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_eqnInfoExt___elambda__2(lean_object* x_1) {
  _start:
  {
  lean_object* x_2; 
  x_2 = l_Lean_Elab_Structural_mkEqns___closed__1;
  return x_2;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_eqnInfoExt___elambda__3(lean_object* x_1, lean_object* x_2) {
  _start:
  {
  lean_inc(x_1);
  return x_1;
  }
  }
  static uint32_t _init_l_Lean_Elab_Structural_eqnInfoExt___elambda__4___rarg___closed__1() {
  _start:
  {
  lean_object* x_1; uint32_t x_2; 
  x_1 = lean_unsigned_to_nat(0u);
  x_2 = lean_uint32_of_nat(x_1);
  return x_2;
  }
  }
  static lean_object* _init_l_Lean_Elab_Structural_eqnInfoExt___elambda__4___rarg___closed__2() {
  _start:
  {
  lean_object* x_1; uint32_t x_2; lean_object* x_3; lean_object* x_4; 
  x_1 = lean_box(0);
  x_2 = l_Lean_Elab_Structural_eqnInfoExt___elambda__4___rarg___closed__1;
  x_3 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__5;
  x_4 = lean_alloc_ctor(0, 2, 4);
  lean_ctor_set(x_4, 0, x_1);
  lean_ctor_set(x_4, 1, x_3);
  lean_ctor_set_uint32(x_4, sizeof(void*)*2, x_2);
  return x_4;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_eqnInfoExt___elambda__4___rarg(lean_object* x_1) {
  _start:
  {
  lean_object* x_2; lean_object* x_3; 
  x_2 = l_Lean_Elab_Structural_eqnInfoExt___elambda__4___rarg___closed__2;
  x_3 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_3, 0, x_2);
  lean_ctor_set(x_3, 1, x_1);
  return x_3;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_eqnInfoExt___elambda__4(lean_object* x_1, lean_object* x_2) {
  _start:
  {
  lean_object* x_3; 
  x_3 = lean_alloc_closure((void*)(l_Lean_Elab_Structural_eqnInfoExt___elambda__4___rarg), 1, 0);
  return x_3;
  }
  }
  static lean_object* _init_l_Lean_Elab_Structural_eqnInfoExt___closed__1() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_alloc_closure((void*)(l_Lean_EnvExtensionInterfaceUnsafe_instInhabitedExt___lambda__1), 1, 0);
  return x_1;
  }
  }
  static lean_object* _init_l_Lean_Elab_Structural_eqnInfoExt___closed__2() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; lean_object* x_3; 
  x_1 = lean_unsigned_to_nat(0u);
  x_2 = l_Lean_Elab_Structural_eqnInfoExt___closed__1;
  x_3 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_3, 0, x_1);
  lean_ctor_set(x_3, 1, x_2);
  return x_3;
  }
  }
  static lean_object* _init_l_Lean_Elab_Structural_eqnInfoExt___closed__3() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_alloc_closure((void*)(l_Lean_Elab_Structural_eqnInfoExt___elambda__4___boxed), 2, 0);
  return x_1;
  }
  }
  static lean_object* _init_l_Lean_Elab_Structural_eqnInfoExt___closed__4() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_alloc_closure((void*)(l_Lean_Elab_Structural_eqnInfoExt___elambda__3___boxed), 2, 0);
  return x_1;
  }
  }
  static lean_object* _init_l_Lean_Elab_Structural_eqnInfoExt___closed__5() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_alloc_closure((void*)(l_Lean_Elab_Structural_eqnInfoExt___elambda__2___boxed), 1, 0);
  return x_1;
  }
  }
  static lean_object* _init_l_Lean_Elab_Structural_eqnInfoExt___closed__6() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_alloc_closure((void*)(l_Lean_Elab_Structural_eqnInfoExt___elambda__1___boxed), 1, 0);
  return x_1;
  }
  }
  static lean_object* _init_l_Lean_Elab_Structural_eqnInfoExt___closed__7() {
  _start:
  {
  lean_object* x_1; lean_object* x_2; lean_object* x_3; lean_object* x_4; lean_object* x_5; lean_object* x_6; lean_object* x_7; 
  x_1 = l_Lean_Elab_Structural_eqnInfoExt___closed__2;
  x_2 = lean_box(0);
  x_3 = l_Lean_Elab_Structural_eqnInfoExt___closed__3;
  x_4 = l_Lean_Elab_Structural_eqnInfoExt___closed__4;
  x_5 = l_Lean_Elab_Structural_eqnInfoExt___closed__5;
  x_6 = l_Lean_Elab_Structural_eqnInfoExt___closed__6;
  x_7 = lean_alloc_ctor(0, 6, 0);
  lean_ctor_set(x_7, 0, x_1);
  lean_ctor_set(x_7, 1, x_2);
  lean_ctor_set(x_7, 2, x_3);
  lean_ctor_set(x_7, 3, x_4);
  lean_ctor_set(x_7, 4, x_5);
  lean_ctor_set(x_7, 5, x_6);
  return x_7;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_eqnInfoExt___elambda__1___boxed(lean_object* x_1) {
  _start:
  {
  lean_object* x_2; 
  x_2 = l_Lean_Elab_Structural_eqnInfoExt___elambda__1(x_1);
  lean_dec(x_1);
  return x_2;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_eqnInfoExt___elambda__2___boxed(lean_object* x_1) {
  _start:
  {
  lean_object* x_2; 
  x_2 = l_Lean_Elab_Structural_eqnInfoExt___elambda__2(x_1);
  lean_dec(x_1);
  return x_2;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_eqnInfoExt___elambda__3___boxed(lean_object* x_1, lean_object* x_2) {
  _start:
  {
  lean_object* x_3; 
  x_3 = l_Lean_Elab_Structural_eqnInfoExt___elambda__3(x_1, x_2);
  lean_dec(x_2);
  lean_dec(x_1);
  return x_3;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_eqnInfoExt___elambda__4___boxed(lean_object* x_1, lean_object* x_2) {
  _start:
  {
  lean_object* x_3; 
  x_3 = l_Lean_Elab_Structural_eqnInfoExt___elambda__4(x_1, x_2);
  lean_dec(x_2);
  lean_dec(x_1);
  return x_3;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_registerEqnsInfo(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5) {
  _start:
  {
  lean_object* x_6; lean_object* x_7; lean_object* x_8; uint8_t x_9; 
  x_6 = lean_st_ref_take(x_4, x_5);
  x_7 = lean_ctor_get(x_6, 0);
  lean_inc(x_7);
  x_8 = lean_ctor_get(x_6, 1);
  lean_inc(x_8);
  lean_dec(x_6);
  x_9 = !lean_is_exclusive(x_7);
  if (x_9 == 0)
  {
  lean_object* x_10; lean_object* x_11; lean_object* x_12; lean_object* x_13; lean_object* x_14; lean_object* x_15; lean_object* x_16; lean_object* x_17; lean_object* x_18; uint8_t x_19; 
  x_10 = lean_ctor_get(x_7, 0);
  x_11 = lean_ctor_get(x_1, 3);
  lean_inc(x_11);
  x_12 = lean_ctor_get(x_1, 1);
  lean_inc(x_12);
  x_13 = lean_ctor_get(x_1, 4);
  lean_inc(x_13);
  x_14 = lean_ctor_get(x_1, 5);
  lean_inc(x_14);
  lean_dec(x_1);
  lean_inc(x_11);
  x_15 = lean_alloc_ctor(0, 5, 0);
  lean_ctor_set(x_15, 0, x_11);
  lean_ctor_set(x_15, 1, x_12);
  lean_ctor_set(x_15, 2, x_13);
  lean_ctor_set(x_15, 3, x_14);
  lean_ctor_set(x_15, 4, x_2);
  x_16 = l_Lean_Elab_Structural_eqnInfoExt;
  x_17 = l_Lean_MapDeclarationExtension_insert___rarg(x_16, x_10, x_11, x_15);
  lean_ctor_set(x_7, 0, x_17);
  x_18 = lean_st_ref_set(x_4, x_7, x_8);
  x_19 = !lean_is_exclusive(x_18);
  if (x_19 == 0)
  {
  lean_object* x_20; lean_object* x_21; 
  x_20 = lean_ctor_get(x_18, 0);
  lean_dec(x_20);
  x_21 = lean_box(0);
  lean_ctor_set(x_18, 0, x_21);
  return x_18;
  }
  else
  {
  lean_object* x_22; lean_object* x_23; lean_object* x_24; 
  x_22 = lean_ctor_get(x_18, 1);
  lean_inc(x_22);
  lean_dec(x_18);
  x_23 = lean_box(0);
  x_24 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_24, 0, x_23);
  lean_ctor_set(x_24, 1, x_22);
  return x_24;
  }
  }
  else
  {
  lean_object* x_25; lean_object* x_26; lean_object* x_27; lean_object* x_28; lean_object* x_29; lean_object* x_30; lean_object* x_31; lean_object* x_32; lean_object* x_33; lean_object* x_34; lean_object* x_35; lean_object* x_36; lean_object* x_37; lean_object* x_38; lean_object* x_39; lean_object* x_40; lean_object* x_41; 
  x_25 = lean_ctor_get(x_7, 0);
  x_26 = lean_ctor_get(x_7, 1);
  x_27 = lean_ctor_get(x_7, 2);
  x_28 = lean_ctor_get(x_7, 3);
  lean_inc(x_28);
  lean_inc(x_27);
  lean_inc(x_26);
  lean_inc(x_25);
  lean_dec(x_7);
  x_29 = lean_ctor_get(x_1, 3);
  lean_inc(x_29);
  x_30 = lean_ctor_get(x_1, 1);
  lean_inc(x_30);
  x_31 = lean_ctor_get(x_1, 4);
  lean_inc(x_31);
  x_32 = lean_ctor_get(x_1, 5);
  lean_inc(x_32);
  lean_dec(x_1);
  lean_inc(x_29);
  x_33 = lean_alloc_ctor(0, 5, 0);
  lean_ctor_set(x_33, 0, x_29);
  lean_ctor_set(x_33, 1, x_30);
  lean_ctor_set(x_33, 2, x_31);
  lean_ctor_set(x_33, 3, x_32);
  lean_ctor_set(x_33, 4, x_2);
  x_34 = l_Lean_Elab_Structural_eqnInfoExt;
  x_35 = l_Lean_MapDeclarationExtension_insert___rarg(x_34, x_25, x_29, x_33);
  x_36 = lean_alloc_ctor(0, 4, 0);
  lean_ctor_set(x_36, 0, x_35);
  lean_ctor_set(x_36, 1, x_26);
  lean_ctor_set(x_36, 2, x_27);
  lean_ctor_set(x_36, 3, x_28);
  x_37 = lean_st_ref_set(x_4, x_36, x_8);
  x_38 = lean_ctor_get(x_37, 1);
  lean_inc(x_38);
  if (lean_is_exclusive(x_37)) {
   lean_ctor_release(x_37, 0);
   lean_ctor_release(x_37, 1);
   x_39 = x_37;
  } else {
   lean_dec_ref(x_37);
   x_39 = lean_box(0);
  }
  x_40 = lean_box(0);
  if (lean_is_scalar(x_39)) {
   x_41 = lean_alloc_ctor(0, 2, 0);
  } else {
   x_41 = x_39;
  }
  lean_ctor_set(x_41, 0, x_40);
  lean_ctor_set(x_41, 1, x_38);
  return x_41;
  }
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_registerEqnsInfo___boxed(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5) {
  _start:
  {
  lean_object* x_6; 
  x_6 = l_Lean_Elab_Structural_registerEqnsInfo(x_1, x_2, x_3, x_4, x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  return x_6;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_getEqnsFor_x3f___lambda__1(lean_object* x_1, lean_object* x_2, lean_object* x_3) {
  _start:
  {
  lean_object* x_4; lean_object* x_5; lean_object* x_6; 
  x_4 = l_Lean_Name_instBEqName;
  x_5 = l_Lean_instHashableName;
  x_6 = l_Std_PersistentHashMap_insert___rarg(x_4, x_5, x_3, x_1, x_2);
  return x_6;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_getEqnsFor_x3f(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6) {
  _start:
  {
  lean_object* x_7; uint8_t x_8; 
  x_7 = lean_st_ref_get(x_5, x_6);
  x_8 = !lean_is_exclusive(x_7);
  if (x_8 == 0)
  {
  lean_object* x_9; lean_object* x_10; lean_object* x_11; lean_object* x_12; lean_object* x_13; lean_object* x_14; lean_object* x_15; lean_object* x_16; lean_object* x_17; 
  x_9 = lean_ctor_get(x_7, 0);
  x_10 = lean_ctor_get(x_7, 1);
  x_11 = lean_ctor_get(x_9, 0);
  lean_inc(x_11);
  lean_dec(x_9);
  x_12 = l_Lean_Elab_Eqns_instInhabitedEqnsExtState;
  x_13 = l_Lean_Elab_Eqns_eqnsExt;
  x_14 = l_Lean_EnvExtensionInterfaceUnsafe_getState___rarg(x_12, x_13, x_11);
  x_15 = l_Lean_Name_instBEqName;
  x_16 = l_Lean_instHashableName;
  lean_inc(x_1);
  x_17 = l_Std_PersistentHashMap_find_x3f___rarg(x_15, x_16, x_14, x_1);
  if (lean_obj_tag(x_17) == 0)
  {
  lean_object* x_18; lean_object* x_19; lean_object* x_20; 
  x_18 = l_Lean_Elab_Structural_instInhabitedEqnInfo;
  x_19 = l_Lean_Elab_Structural_eqnInfoExt;
  lean_inc(x_1);
  x_20 = l_Lean_MapDeclarationExtension_find_x3f___rarg(x_18, x_19, x_11, x_1);
  if (lean_obj_tag(x_20) == 0)
  {
  lean_object* x_21; 
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_2);
  lean_dec(x_1);
  x_21 = lean_box(0);
  lean_ctor_set(x_7, 0, x_21);
  return x_7;
  }
  else
  {
  uint8_t x_22; 
  lean_free_object(x_7);
  x_22 = !lean_is_exclusive(x_20);
  if (x_22 == 0)
  {
  lean_object* x_23; lean_object* x_24; 
  x_23 = lean_ctor_get(x_20, 0);
  lean_inc(x_5);
  x_24 = l_Lean_Elab_Structural_mkEqns(x_23, x_2, x_3, x_4, x_5, x_10);
  if (lean_obj_tag(x_24) == 0)
  {
  lean_object* x_25; lean_object* x_26; lean_object* x_27; lean_object* x_28; lean_object* x_29; uint8_t x_30; 
  x_25 = lean_ctor_get(x_24, 0);
  lean_inc(x_25);
  x_26 = lean_ctor_get(x_24, 1);
  lean_inc(x_26);
  lean_dec(x_24);
  x_27 = lean_st_ref_take(x_5, x_26);
  x_28 = lean_ctor_get(x_27, 0);
  lean_inc(x_28);
  x_29 = lean_ctor_get(x_27, 1);
  lean_inc(x_29);
  lean_dec(x_27);
  x_30 = !lean_is_exclusive(x_28);
  if (x_30 == 0)
  {
  lean_object* x_31; lean_object* x_32; lean_object* x_33; lean_object* x_34; uint8_t x_35; 
  x_31 = lean_ctor_get(x_28, 0);
  lean_inc(x_25);
  x_32 = lean_alloc_closure((void*)(l_Lean_Elab_Structural_getEqnsFor_x3f___lambda__1), 3, 2);
  lean_closure_set(x_32, 0, x_1);
  lean_closure_set(x_32, 1, x_25);
  x_33 = l_Lean_EnvExtensionInterfaceUnsafe_imp___elambda__2___rarg(x_13, x_31, x_32);
  lean_ctor_set(x_28, 0, x_33);
  x_34 = lean_st_ref_set(x_5, x_28, x_29);
  lean_dec(x_5);
  x_35 = !lean_is_exclusive(x_34);
  if (x_35 == 0)
  {
  lean_object* x_36; 
  x_36 = lean_ctor_get(x_34, 0);
  lean_dec(x_36);
  lean_ctor_set(x_20, 0, x_25);
  lean_ctor_set(x_34, 0, x_20);
  return x_34;
  }
  else
  {
  lean_object* x_37; lean_object* x_38; 
  x_37 = lean_ctor_get(x_34, 1);
  lean_inc(x_37);
  lean_dec(x_34);
  lean_ctor_set(x_20, 0, x_25);
  x_38 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_38, 0, x_20);
  lean_ctor_set(x_38, 1, x_37);
  return x_38;
  }
  }
  else
  {
  lean_object* x_39; lean_object* x_40; lean_object* x_41; lean_object* x_42; lean_object* x_43; lean_object* x_44; lean_object* x_45; lean_object* x_46; lean_object* x_47; lean_object* x_48; lean_object* x_49; 
  x_39 = lean_ctor_get(x_28, 0);
  x_40 = lean_ctor_get(x_28, 1);
  x_41 = lean_ctor_get(x_28, 2);
  x_42 = lean_ctor_get(x_28, 3);
  lean_inc(x_42);
  lean_inc(x_41);
  lean_inc(x_40);
  lean_inc(x_39);
  lean_dec(x_28);
  lean_inc(x_25);
  x_43 = lean_alloc_closure((void*)(l_Lean_Elab_Structural_getEqnsFor_x3f___lambda__1), 3, 2);
  lean_closure_set(x_43, 0, x_1);
  lean_closure_set(x_43, 1, x_25);
  x_44 = l_Lean_EnvExtensionInterfaceUnsafe_imp___elambda__2___rarg(x_13, x_39, x_43);
  x_45 = lean_alloc_ctor(0, 4, 0);
  lean_ctor_set(x_45, 0, x_44);
  lean_ctor_set(x_45, 1, x_40);
  lean_ctor_set(x_45, 2, x_41);
  lean_ctor_set(x_45, 3, x_42);
  x_46 = lean_st_ref_set(x_5, x_45, x_29);
  lean_dec(x_5);
  x_47 = lean_ctor_get(x_46, 1);
  lean_inc(x_47);
  if (lean_is_exclusive(x_46)) {
   lean_ctor_release(x_46, 0);
   lean_ctor_release(x_46, 1);
   x_48 = x_46;
  } else {
   lean_dec_ref(x_46);
   x_48 = lean_box(0);
  }
  lean_ctor_set(x_20, 0, x_25);
  if (lean_is_scalar(x_48)) {
   x_49 = lean_alloc_ctor(0, 2, 0);
  } else {
   x_49 = x_48;
  }
  lean_ctor_set(x_49, 0, x_20);
  lean_ctor_set(x_49, 1, x_47);
  return x_49;
  }
  }
  else
  {
  uint8_t x_50; 
  lean_free_object(x_20);
  lean_dec(x_5);
  lean_dec(x_1);
  x_50 = !lean_is_exclusive(x_24);
  if (x_50 == 0)
  {
  return x_24;
  }
  else
  {
  lean_object* x_51; lean_object* x_52; lean_object* x_53; 
  x_51 = lean_ctor_get(x_24, 0);
  x_52 = lean_ctor_get(x_24, 1);
  lean_inc(x_52);
  lean_inc(x_51);
  lean_dec(x_24);
  x_53 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_53, 0, x_51);
  lean_ctor_set(x_53, 1, x_52);
  return x_53;
  }
  }
  }
  else
  {
  lean_object* x_54; lean_object* x_55; 
  x_54 = lean_ctor_get(x_20, 0);
  lean_inc(x_54);
  lean_dec(x_20);
  lean_inc(x_5);
  x_55 = l_Lean_Elab_Structural_mkEqns(x_54, x_2, x_3, x_4, x_5, x_10);
  if (lean_obj_tag(x_55) == 0)
  {
  lean_object* x_56; lean_object* x_57; lean_object* x_58; lean_object* x_59; lean_object* x_60; lean_object* x_61; lean_object* x_62; lean_object* x_63; lean_object* x_64; lean_object* x_65; lean_object* x_66; lean_object* x_67; lean_object* x_68; lean_object* x_69; lean_object* x_70; lean_object* x_71; lean_object* x_72; lean_object* x_73; 
  x_56 = lean_ctor_get(x_55, 0);
  lean_inc(x_56);
  x_57 = lean_ctor_get(x_55, 1);
  lean_inc(x_57);
  lean_dec(x_55);
  x_58 = lean_st_ref_take(x_5, x_57);
  x_59 = lean_ctor_get(x_58, 0);
  lean_inc(x_59);
  x_60 = lean_ctor_get(x_58, 1);
  lean_inc(x_60);
  lean_dec(x_58);
  x_61 = lean_ctor_get(x_59, 0);
  lean_inc(x_61);
  x_62 = lean_ctor_get(x_59, 1);
  lean_inc(x_62);
  x_63 = lean_ctor_get(x_59, 2);
  lean_inc(x_63);
  x_64 = lean_ctor_get(x_59, 3);
  lean_inc(x_64);
  if (lean_is_exclusive(x_59)) {
   lean_ctor_release(x_59, 0);
   lean_ctor_release(x_59, 1);
   lean_ctor_release(x_59, 2);
   lean_ctor_release(x_59, 3);
   x_65 = x_59;
  } else {
   lean_dec_ref(x_59);
   x_65 = lean_box(0);
  }
  lean_inc(x_56);
  x_66 = lean_alloc_closure((void*)(l_Lean_Elab_Structural_getEqnsFor_x3f___lambda__1), 3, 2);
  lean_closure_set(x_66, 0, x_1);
  lean_closure_set(x_66, 1, x_56);
  x_67 = l_Lean_EnvExtensionInterfaceUnsafe_imp___elambda__2___rarg(x_13, x_61, x_66);
  if (lean_is_scalar(x_65)) {
   x_68 = lean_alloc_ctor(0, 4, 0);
  } else {
   x_68 = x_65;
  }
  lean_ctor_set(x_68, 0, x_67);
  lean_ctor_set(x_68, 1, x_62);
  lean_ctor_set(x_68, 2, x_63);
  lean_ctor_set(x_68, 3, x_64);
  x_69 = lean_st_ref_set(x_5, x_68, x_60);
  lean_dec(x_5);
  x_70 = lean_ctor_get(x_69, 1);
  lean_inc(x_70);
  if (lean_is_exclusive(x_69)) {
   lean_ctor_release(x_69, 0);
   lean_ctor_release(x_69, 1);
   x_71 = x_69;
  } else {
   lean_dec_ref(x_69);
   x_71 = lean_box(0);
  }
  x_72 = lean_alloc_ctor(1, 1, 0);
  lean_ctor_set(x_72, 0, x_56);
  if (lean_is_scalar(x_71)) {
   x_73 = lean_alloc_ctor(0, 2, 0);
  } else {
   x_73 = x_71;
  }
  lean_ctor_set(x_73, 0, x_72);
  lean_ctor_set(x_73, 1, x_70);
  return x_73;
  }
  else
  {
  lean_object* x_74; lean_object* x_75; lean_object* x_76; lean_object* x_77; 
  lean_dec(x_5);
  lean_dec(x_1);
  x_74 = lean_ctor_get(x_55, 0);
  lean_inc(x_74);
  x_75 = lean_ctor_get(x_55, 1);
  lean_inc(x_75);
  if (lean_is_exclusive(x_55)) {
   lean_ctor_release(x_55, 0);
   lean_ctor_release(x_55, 1);
   x_76 = x_55;
  } else {
   lean_dec_ref(x_55);
   x_76 = lean_box(0);
  }
  if (lean_is_scalar(x_76)) {
   x_77 = lean_alloc_ctor(1, 2, 0);
  } else {
   x_77 = x_76;
  }
  lean_ctor_set(x_77, 0, x_74);
  lean_ctor_set(x_77, 1, x_75);
  return x_77;
  }
  }
  }
  }
  else
  {
  uint8_t x_78; 
  lean_dec(x_11);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_2);
  lean_dec(x_1);
  x_78 = !lean_is_exclusive(x_17);
  if (x_78 == 0)
  {
  lean_ctor_set(x_7, 0, x_17);
  return x_7;
  }
  else
  {
  lean_object* x_79; lean_object* x_80; 
  x_79 = lean_ctor_get(x_17, 0);
  lean_inc(x_79);
  lean_dec(x_17);
  x_80 = lean_alloc_ctor(1, 1, 0);
  lean_ctor_set(x_80, 0, x_79);
  lean_ctor_set(x_7, 0, x_80);
  return x_7;
  }
  }
  }
  else
  {
  lean_object* x_81; lean_object* x_82; lean_object* x_83; lean_object* x_84; lean_object* x_85; lean_object* x_86; lean_object* x_87; lean_object* x_88; lean_object* x_89; 
  x_81 = lean_ctor_get(x_7, 0);
  x_82 = lean_ctor_get(x_7, 1);
  lean_inc(x_82);
  lean_inc(x_81);
  lean_dec(x_7);
  x_83 = lean_ctor_get(x_81, 0);
  lean_inc(x_83);
  lean_dec(x_81);
  x_84 = l_Lean_Elab_Eqns_instInhabitedEqnsExtState;
  x_85 = l_Lean_Elab_Eqns_eqnsExt;
  x_86 = l_Lean_EnvExtensionInterfaceUnsafe_getState___rarg(x_84, x_85, x_83);
  x_87 = l_Lean_Name_instBEqName;
  x_88 = l_Lean_instHashableName;
  lean_inc(x_1);
  x_89 = l_Std_PersistentHashMap_find_x3f___rarg(x_87, x_88, x_86, x_1);
  if (lean_obj_tag(x_89) == 0)
  {
  lean_object* x_90; lean_object* x_91; lean_object* x_92; 
  x_90 = l_Lean_Elab_Structural_instInhabitedEqnInfo;
  x_91 = l_Lean_Elab_Structural_eqnInfoExt;
  lean_inc(x_1);
  x_92 = l_Lean_MapDeclarationExtension_find_x3f___rarg(x_90, x_91, x_83, x_1);
  if (lean_obj_tag(x_92) == 0)
  {
  lean_object* x_93; lean_object* x_94; 
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_2);
  lean_dec(x_1);
  x_93 = lean_box(0);
  x_94 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_94, 0, x_93);
  lean_ctor_set(x_94, 1, x_82);
  return x_94;
  }
  else
  {
  lean_object* x_95; lean_object* x_96; lean_object* x_97; 
  x_95 = lean_ctor_get(x_92, 0);
  lean_inc(x_95);
  if (lean_is_exclusive(x_92)) {
   lean_ctor_release(x_92, 0);
   x_96 = x_92;
  } else {
   lean_dec_ref(x_92);
   x_96 = lean_box(0);
  }
  lean_inc(x_5);
  x_97 = l_Lean_Elab_Structural_mkEqns(x_95, x_2, x_3, x_4, x_5, x_82);
  if (lean_obj_tag(x_97) == 0)
  {
  lean_object* x_98; lean_object* x_99; lean_object* x_100; lean_object* x_101; lean_object* x_102; lean_object* x_103; lean_object* x_104; lean_object* x_105; lean_object* x_106; lean_object* x_107; lean_object* x_108; lean_object* x_109; lean_object* x_110; lean_object* x_111; lean_object* x_112; lean_object* x_113; lean_object* x_114; lean_object* x_115; 
  x_98 = lean_ctor_get(x_97, 0);
  lean_inc(x_98);
  x_99 = lean_ctor_get(x_97, 1);
  lean_inc(x_99);
  lean_dec(x_97);
  x_100 = lean_st_ref_take(x_5, x_99);
  x_101 = lean_ctor_get(x_100, 0);
  lean_inc(x_101);
  x_102 = lean_ctor_get(x_100, 1);
  lean_inc(x_102);
  lean_dec(x_100);
  x_103 = lean_ctor_get(x_101, 0);
  lean_inc(x_103);
  x_104 = lean_ctor_get(x_101, 1);
  lean_inc(x_104);
  x_105 = lean_ctor_get(x_101, 2);
  lean_inc(x_105);
  x_106 = lean_ctor_get(x_101, 3);
  lean_inc(x_106);
  if (lean_is_exclusive(x_101)) {
   lean_ctor_release(x_101, 0);
   lean_ctor_release(x_101, 1);
   lean_ctor_release(x_101, 2);
   lean_ctor_release(x_101, 3);
   x_107 = x_101;
  } else {
   lean_dec_ref(x_101);
   x_107 = lean_box(0);
  }
  lean_inc(x_98);
  x_108 = lean_alloc_closure((void*)(l_Lean_Elab_Structural_getEqnsFor_x3f___lambda__1), 3, 2);
  lean_closure_set(x_108, 0, x_1);
  lean_closure_set(x_108, 1, x_98);
  x_109 = l_Lean_EnvExtensionInterfaceUnsafe_imp___elambda__2___rarg(x_85, x_103, x_108);
  if (lean_is_scalar(x_107)) {
   x_110 = lean_alloc_ctor(0, 4, 0);
  } else {
   x_110 = x_107;
  }
  lean_ctor_set(x_110, 0, x_109);
  lean_ctor_set(x_110, 1, x_104);
  lean_ctor_set(x_110, 2, x_105);
  lean_ctor_set(x_110, 3, x_106);
  x_111 = lean_st_ref_set(x_5, x_110, x_102);
  lean_dec(x_5);
  x_112 = lean_ctor_get(x_111, 1);
  lean_inc(x_112);
  if (lean_is_exclusive(x_111)) {
   lean_ctor_release(x_111, 0);
   lean_ctor_release(x_111, 1);
   x_113 = x_111;
  } else {
   lean_dec_ref(x_111);
   x_113 = lean_box(0);
  }
  if (lean_is_scalar(x_96)) {
   x_114 = lean_alloc_ctor(1, 1, 0);
  } else {
   x_114 = x_96;
  }
  lean_ctor_set(x_114, 0, x_98);
  if (lean_is_scalar(x_113)) {
   x_115 = lean_alloc_ctor(0, 2, 0);
  } else {
   x_115 = x_113;
  }
  lean_ctor_set(x_115, 0, x_114);
  lean_ctor_set(x_115, 1, x_112);
  return x_115;
  }
  else
  {
  lean_object* x_116; lean_object* x_117; lean_object* x_118; lean_object* x_119; 
  lean_dec(x_96);
  lean_dec(x_5);
  lean_dec(x_1);
  x_116 = lean_ctor_get(x_97, 0);
  lean_inc(x_116);
  x_117 = lean_ctor_get(x_97, 1);
  lean_inc(x_117);
  if (lean_is_exclusive(x_97)) {
   lean_ctor_release(x_97, 0);
   lean_ctor_release(x_97, 1);
   x_118 = x_97;
  } else {
   lean_dec_ref(x_97);
   x_118 = lean_box(0);
  }
  if (lean_is_scalar(x_118)) {
   x_119 = lean_alloc_ctor(1, 2, 0);
  } else {
   x_119 = x_118;
  }
  lean_ctor_set(x_119, 0, x_116);
  lean_ctor_set(x_119, 1, x_117);
  return x_119;
  }
  }
  }
  else
  {
  lean_object* x_120; lean_object* x_121; lean_object* x_122; lean_object* x_123; 
  lean_dec(x_83);
  lean_dec(x_5);
  lean_dec(x_4);
  lean_dec(x_3);
  lean_dec(x_2);
  lean_dec(x_1);
  x_120 = lean_ctor_get(x_89, 0);
  lean_inc(x_120);
  if (lean_is_exclusive(x_89)) {
   lean_ctor_release(x_89, 0);
   x_121 = x_89;
  } else {
   lean_dec_ref(x_89);
   x_121 = lean_box(0);
  }
  if (lean_is_scalar(x_121)) {
   x_122 = lean_alloc_ctor(1, 1, 0);
  } else {
   x_122 = x_121;
  }
  lean_ctor_set(x_122, 0, x_120);
  x_123 = lean_alloc_ctor(0, 2, 0);
  lean_ctor_set(x_123, 0, x_122);
  lean_ctor_set(x_123, 1, x_82);
  return x_123;
  }
  }
  }
  }
  static lean_object* _init_l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1787____closed__1() {
  _start:
  {
  lean_object* x_1; 
  x_1 = lean_alloc_closure((void*)(l_Lean_Elab_Structural_getEqnsFor_x3f), 6, 0);
  return x_1;
  }
  }
  LEAN_EXPORT lean_object* l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1787_(lean_object* x_1) {
  _start:
  {
  lean_object* x_2; lean_object* x_3; 
  x_2 = l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1787____closed__1;
  x_3 = l_Lean_Meta_registerGetEqnsFn(x_2, x_1);
  if (lean_obj_tag(x_3) == 0)
  {
  lean_object* x_4; lean_object* x_5; lean_object* x_6; 
  x_4 = lean_ctor_get(x_3, 1);
  lean_inc(x_4);
  lean_dec(x_3);
  x_5 = l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__8;
  x_6 = l_Lean_registerTraceClass(x_5, x_4);
  return x_6;
  }
  else
  {
  uint8_t x_7; 
  x_7 = !lean_is_exclusive(x_3);
  if (x_7 == 0)
  {
  return x_3;
  }
  else
  {
  lean_object* x_8; lean_object* x_9; lean_object* x_10; 
  x_8 = lean_ctor_get(x_3, 0);
  x_9 = lean_ctor_get(x_3, 1);
  lean_inc(x_9);
  lean_inc(x_8);
  lean_dec(x_3);
  x_10 = lean_alloc_ctor(1, 2, 0);
  lean_ctor_set(x_10, 0, x_8);
  lean_ctor_set(x_10, 1, x_9);
  return x_10;
  }
  }
  }
  }
  lean_object* initialize_Init(lean_object*);
  lean_object* initialize_Lean_Meta_Eqns(lean_object*);
  lean_object* initialize_Lean_Meta_Tactic_Split(lean_object*);
  lean_object* initialize_Lean_Meta_Tactic_Apply(lean_object*);
  lean_object* initialize_Lean_Elab_PreDefinition_Basic(lean_object*);
  lean_object* initialize_Lean_Elab_PreDefinition_Eqns(lean_object*);
  lean_object* initialize_Lean_Elab_PreDefinition_Structural_Basic(lean_object*);
  static bool _G_initialized = false;
  LEAN_EXPORT lean_object* initialize_Lean_Elab_PreDefinition_Structural_Eqns(lean_object* w) {
  lean_object * res;
  if (_G_initialized) return lean_io_result_mk_ok(lean_box(0));
  _G_initialized = true;
  res = initialize_Init(lean_io_mk_world());
  if (lean_io_result_is_error(res)) return res;
  lean_dec_ref(res);
  res = initialize_Lean_Meta_Eqns(lean_io_mk_world());
  if (lean_io_result_is_error(res)) return res;
  lean_dec_ref(res);
  res = initialize_Lean_Meta_Tactic_Split(lean_io_mk_world());
  if (lean_io_result_is_error(res)) return res;
  lean_dec_ref(res);
  res = initialize_Lean_Meta_Tactic_Apply(lean_io_mk_world());
  if (lean_io_result_is_error(res)) return res;
  lean_dec_ref(res);
  res = initialize_Lean_Elab_PreDefinition_Basic(lean_io_mk_world());
  if (lean_io_result_is_error(res)) return res;
  lean_dec_ref(res);
  res = initialize_Lean_Elab_PreDefinition_Eqns(lean_io_mk_world());
  if (lean_io_result_is_error(res)) return res;
  lean_dec_ref(res);
  res = initialize_Lean_Elab_PreDefinition_Structural_Basic(lean_io_mk_world());
  if (lean_io_result_is_error(res)) return res;
  lean_dec_ref(res);
  l_Lean_Elab_tryURefl___closed__1 = _init_l_Lean_Elab_tryURefl___closed__1();
  lean_mark_persistent(l_Lean_Elab_tryURefl___closed__1);
  l_Lean_Elab_tryURefl___closed__2 = _init_l_Lean_Elab_tryURefl___closed__2();
  lean_mark_persistent(l_Lean_Elab_tryURefl___closed__2);
  l_Lean_Elab_tryURefl___closed__3 = _init_l_Lean_Elab_tryURefl___closed__3();
  lean_mark_persistent(l_Lean_Elab_tryURefl___closed__3);
  l_Lean_Elab_deltaLHS___lambda__2___closed__1 = _init_l_Lean_Elab_deltaLHS___lambda__2___closed__1();
  lean_mark_persistent(l_Lean_Elab_deltaLHS___lambda__2___closed__1);
  l_Lean_Elab_deltaLHS___lambda__2___closed__2 = _init_l_Lean_Elab_deltaLHS___lambda__2___closed__2();
  lean_mark_persistent(l_Lean_Elab_deltaLHS___lambda__2___closed__2);
  l_Lean_Elab_deltaLHS___lambda__2___closed__3 = _init_l_Lean_Elab_deltaLHS___lambda__2___closed__3();
  lean_mark_persistent(l_Lean_Elab_deltaLHS___lambda__2___closed__3);
  l_Lean_Elab_deltaLHS___lambda__2___closed__4 = _init_l_Lean_Elab_deltaLHS___lambda__2___closed__4();
  lean_mark_persistent(l_Lean_Elab_deltaLHS___lambda__2___closed__4);
  l_Lean_Elab_deltaLHS___lambda__2___closed__5 = _init_l_Lean_Elab_deltaLHS___lambda__2___closed__5();
  lean_mark_persistent(l_Lean_Elab_deltaLHS___lambda__2___closed__5);
  l_Lean_Elab_deltaLHS___lambda__2___closed__6 = _init_l_Lean_Elab_deltaLHS___lambda__2___closed__6();
  lean_mark_persistent(l_Lean_Elab_deltaLHS___lambda__2___closed__6);
  l_Lean_Elab_deltaLHS___lambda__2___closed__7 = _init_l_Lean_Elab_deltaLHS___lambda__2___closed__7();
  lean_mark_persistent(l_Lean_Elab_deltaLHS___lambda__2___closed__7);
  l_Lean_Elab_deltaLHS___lambda__2___closed__8 = _init_l_Lean_Elab_deltaLHS___lambda__2___closed__8();
  lean_mark_persistent(l_Lean_Elab_deltaLHS___lambda__2___closed__8);
  l_Lean_Elab_deltaLHS___lambda__2___closed__9 = _init_l_Lean_Elab_deltaLHS___lambda__2___closed__9();
  lean_mark_persistent(l_Lean_Elab_deltaLHS___lambda__2___closed__9);
  l_Lean_Elab_deltaLHS___lambda__2___closed__10 = _init_l_Lean_Elab_deltaLHS___lambda__2___closed__10();
  lean_mark_persistent(l_Lean_Elab_deltaLHS___lambda__2___closed__10);
  l_Lean_Elab_deltaLHS___lambda__2___closed__11 = _init_l_Lean_Elab_deltaLHS___lambda__2___closed__11();
  lean_mark_persistent(l_Lean_Elab_deltaLHS___lambda__2___closed__11);
  l_Lean_Elab_deltaRHS_x3f___lambda__2___closed__1 = _init_l_Lean_Elab_deltaRHS_x3f___lambda__2___closed__1();
  lean_mark_persistent(l_Lean_Elab_deltaRHS_x3f___lambda__2___closed__1);
  l_Lean_Elab_deltaRHS_x3f___lambda__2___closed__2 = _init_l_Lean_Elab_deltaRHS_x3f___lambda__2___closed__2();
  lean_mark_persistent(l_Lean_Elab_deltaRHS_x3f___lambda__2___closed__2);
  l_Lean_Elab_whnfReducibleLHS_x3f___lambda__1___closed__1 = _init_l_Lean_Elab_whnfReducibleLHS_x3f___lambda__1___closed__1();
  lean_mark_persistent(l_Lean_Elab_whnfReducibleLHS_x3f___lambda__1___closed__1);
  l_Lean_Elab_whnfReducibleLHS_x3f___lambda__1___closed__2 = _init_l_Lean_Elab_whnfReducibleLHS_x3f___lambda__1___closed__2();
  lean_mark_persistent(l_Lean_Elab_whnfReducibleLHS_x3f___lambda__1___closed__2);
  l_Lean_Elab_tryContradiction___closed__1 = _init_l_Lean_Elab_tryContradiction___closed__1();
  lean_mark_persistent(l_Lean_Elab_tryContradiction___closed__1);
  l_Lean_Elab_Structural_instInhabitedEqnInfo___closed__1 = _init_l_Lean_Elab_Structural_instInhabitedEqnInfo___closed__1();
  l_Lean_Elab_Structural_instInhabitedEqnInfo___closed__2 = _init_l_Lean_Elab_Structural_instInhabitedEqnInfo___closed__2();
  lean_mark_persistent(l_Lean_Elab_Structural_instInhabitedEqnInfo___closed__2);
  l_Lean_Elab_Structural_instInhabitedEqnInfo___closed__3 = _init_l_Lean_Elab_Structural_instInhabitedEqnInfo___closed__3();
  lean_mark_persistent(l_Lean_Elab_Structural_instInhabitedEqnInfo___closed__3);
  l_Lean_Elab_Structural_instInhabitedEqnInfo = _init_l_Lean_Elab_Structural_instInhabitedEqnInfo();
  lean_mark_persistent(l_Lean_Elab_Structural_instInhabitedEqnInfo);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__1 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__1();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__1);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__2 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__2();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__2);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__3 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__3();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__3);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__4 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__4();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkBaseNameFor___closed__4);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__1 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__1();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__1);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__2 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__2();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__2);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__3 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__3();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__3);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__4 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__4();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__4);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__5 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__5();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__5);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__6 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__6();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___lambda__1___closed__6);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__1 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__1();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__1);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__2 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__2();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__2);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__3 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__3();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__3);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__4 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__4();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__4);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__5 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__5();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__5);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__6 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__6();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__6);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__7 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__7();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__7);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__8 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__8();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__8);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__9 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__9();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__9);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__10 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__10();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof_go___closed__10);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___closed__1 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___closed__1();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___closed__1);
  l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___closed__2 = _init_l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___closed__2();
  lean_mark_persistent(l___private_Lean_Elab_PreDefinition_Structural_Eqns_0__Lean_Elab_Structural_mkProof___closed__2);
  l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___lambda__1___closed__1 = _init_l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___lambda__1___closed__1();
  lean_mark_persistent(l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___lambda__1___closed__1);
  l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___lambda__1___closed__2 = _init_l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___lambda__1___closed__2();
  lean_mark_persistent(l_Std_Range_forIn_loop___at_Lean_Elab_Structural_mkEqns___spec__1___lambda__1___closed__2);
  l_Lean_Elab_Structural_mkEqns___lambda__1___closed__1 = _init_l_Lean_Elab_Structural_mkEqns___lambda__1___closed__1();
  lean_mark_persistent(l_Lean_Elab_Structural_mkEqns___lambda__1___closed__1);
  l_Lean_Elab_Structural_mkEqns___closed__1 = _init_l_Lean_Elab_Structural_mkEqns___closed__1();
  lean_mark_persistent(l_Lean_Elab_Structural_mkEqns___closed__1);
  l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1627____closed__1 = _init_l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1627____closed__1();
  lean_mark_persistent(l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1627____closed__1);
  l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1627____closed__2 = _init_l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1627____closed__2();
  lean_mark_persistent(l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1627____closed__2);
  l_Lean_Elab_Structural_eqnInfoExt___elambda__4___rarg___closed__1 = _init_l_Lean_Elab_Structural_eqnInfoExt___elambda__4___rarg___closed__1();
  l_Lean_Elab_Structural_eqnInfoExt___elambda__4___rarg___closed__2 = _init_l_Lean_Elab_Structural_eqnInfoExt___elambda__4___rarg___closed__2();
  lean_mark_persistent(l_Lean_Elab_Structural_eqnInfoExt___elambda__4___rarg___closed__2);
  l_Lean_Elab_Structural_eqnInfoExt___closed__1 = _init_l_Lean_Elab_Structural_eqnInfoExt___closed__1();
  lean_mark_persistent(l_Lean_Elab_Structural_eqnInfoExt___closed__1);
  l_Lean_Elab_Structural_eqnInfoExt___closed__2 = _init_l_Lean_Elab_Structural_eqnInfoExt___closed__2();
  lean_mark_persistent(l_Lean_Elab_Structural_eqnInfoExt___closed__2);
  l_Lean_Elab_Structural_eqnInfoExt___closed__3 = _init_l_Lean_Elab_Structural_eqnInfoExt___closed__3();
  lean_mark_persistent(l_Lean_Elab_Structural_eqnInfoExt___closed__3);
  l_Lean_Elab_Structural_eqnInfoExt___closed__4 = _init_l_Lean_Elab_Structural_eqnInfoExt___closed__4();
  lean_mark_persistent(l_Lean_Elab_Structural_eqnInfoExt___closed__4);
  l_Lean_Elab_Structural_eqnInfoExt___closed__5 = _init_l_Lean_Elab_Structural_eqnInfoExt___closed__5();
  lean_mark_persistent(l_Lean_Elab_Structural_eqnInfoExt___closed__5);
  l_Lean_Elab_Structural_eqnInfoExt___closed__6 = _init_l_Lean_Elab_Structural_eqnInfoExt___closed__6();
  lean_mark_persistent(l_Lean_Elab_Structural_eqnInfoExt___closed__6);
  l_Lean_Elab_Structural_eqnInfoExt___closed__7 = _init_l_Lean_Elab_Structural_eqnInfoExt___closed__7();
  lean_mark_persistent(l_Lean_Elab_Structural_eqnInfoExt___closed__7);
  res = l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1627_(lean_io_mk_world());
  if (lean_io_result_is_error(res)) return res;
  l_Lean_Elab_Structural_eqnInfoExt = lean_io_result_get_value(res);
  lean_mark_persistent(l_Lean_Elab_Structural_eqnInfoExt);
  lean_dec_ref(res);
  l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1787____closed__1 = _init_l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1787____closed__1();
  lean_mark_persistent(l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1787____closed__1);
  res = l_Lean_Elab_Structural_initFn____x40_Lean_Elab_PreDefinition_Structural_Eqns___hyg_1787_(lean_io_mk_world());
  if (lean_io_result_is_error(res)) return res;
  lean_dec_ref(res);
  return lean_io_result_mk_ok(lean_box(0));
  }
  #ifdef __cplusplus
  }
  #endif
  