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commit
stringclasses
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file_path
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7
101
full_name
stringlengths
1
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stringlengths
6
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stringlengths
6
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state_after
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6
2.09M
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro H' a2
case a Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct Δ' phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H_1 ∈ H :: Δ', Holds D I V E H_1 ⊢ ∀ H ∈ Δ', Holds D I V E H
case a Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct Δ' phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H_1 ∈ H :: Δ', Holds D I V E H_1 H' : Formula a2 : H' ∈ Δ' ⊢ Holds D I V E H'
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp at a1
case a Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct Δ' phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H_1 ∈ H :: Δ', Holds D I V E H_1 H' : Formula a2 : H' ∈ Δ' ⊢ Holds D I V E H'
case a Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct Δ' phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a2 : H' ∈ Δ' a1 : Holds D I V E H ∧ ∀ a ∈ Δ', Holds D I V E a ⊢ Holds D I V E H'
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
cases a1
case a Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct Δ' phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a2 : H' ∈ Δ' a1 : Holds D I V E H ∧ ∀ a ∈ Δ', Holds D I V E a ⊢ Holds D I V E H'
case a.intro Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct Δ' phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a2 : H' ∈ Δ' left✝ : Holds D I V E H right✝ : ∀ a ∈ Δ', Holds D I V E a ⊢ Holds D I V E H'
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
case _ a1_left a1_right => exact a1_right H' a2
Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct Δ' phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a2 : H' ∈ Δ' a1_left : Holds D I V E H a1_right : ∀ a ∈ Δ', Holds D I V E a ⊢ Holds D I V E H'
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
exact a1_right H' a2
Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct Δ' phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a2 : H' ∈ Δ' a1_left : Holds D I V E H a1_right : ∀ a ∈ Δ', Holds D I V E a ⊢ Holds D I V E H'
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro D I V E a1
Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ ⊢ ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝
Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H_1 ∈ H :: Δ', Holds D I V E H_1 ⊢ Holds D I V E phi✝
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
apply ih_2
Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H_1 ∈ H :: Δ', Holds D I V E H_1 ⊢ Holds D I V E phi✝
case a Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H_1 ∈ H :: Δ', Holds D I V E H_1 ⊢ ∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro H' a2
case a Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H_1 ∈ H :: Δ', Holds D I V E H_1 ⊢ ∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1
case a Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H_1 ∈ H :: Δ', Holds D I V E H_1 H' : Formula a2 : H' ∈ H :: H :: Δ' ⊢ Holds D I V E H'
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp at a1
case a Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H_1 ∈ H :: Δ', Holds D I V E H_1 H' : Formula a2 : H' ∈ H :: H :: Δ' ⊢ Holds D I V E H'
case a Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a2 : H' ∈ H :: H :: Δ' a1 : Holds D I V E H ∧ ∀ a ∈ Δ', Holds D I V E a ⊢ Holds D I V E H'
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
cases a1
case a Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a2 : H' ∈ H :: H :: Δ' a1 : Holds D I V E H ∧ ∀ a ∈ Δ', Holds D I V E a ⊢ Holds D I V E H'
case a.intro Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a2 : H' ∈ H :: H :: Δ' left✝ : Holds D I V E H right✝ : ∀ a ∈ Δ', Holds D I V E a ⊢ Holds D I V E H'
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
case _ a1_left a1_right => simp at a2 cases a2 case _ a2 => simp only [a2] exact a1_left case _ a2 => exact a1_right H' a2
Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a2 : H' ∈ H :: H :: Δ' a1_left : Holds D I V E H a1_right : ∀ a ∈ Δ', Holds D I V E a ⊢ Holds D I V E H'
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp at a2
Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a2 : H' ∈ H :: H :: Δ' a1_left : Holds D I V E H a1_right : ∀ a ∈ Δ', Holds D I V E a ⊢ Holds D I V E H'
Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a1_left : Holds D I V E H a1_right : ∀ a ∈ Δ', Holds D I V E a a2 : H' = H ∨ H' ∈ Δ' ⊢ Holds D I V E H'
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
cases a2
Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a1_left : Holds D I V E H a1_right : ∀ a ∈ Δ', Holds D I V E a a2 : H' = H ∨ H' ∈ Δ' ⊢ Holds D I V E H'
case inl Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a1_left : Holds D I V E H a1_right : ∀ a ∈ Δ', Holds D I V E a h✝ : H' = H ⊢ Holds D I V E H' case inr Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a1_left : Holds D I V E H a1_right : ∀ a ∈ Δ', Holds D I V E a h✝ : H' ∈ Δ' ⊢ Holds D I V E H'
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
case _ a2 => simp only [a2] exact a1_left
Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a1_left : Holds D I V E H a1_right : ∀ a ∈ Δ', Holds D I V E a a2 : H' = H ⊢ Holds D I V E H'
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
case _ a2 => exact a1_right H' a2
Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a1_left : Holds D I V E H a1_right : ∀ a ∈ Δ', Holds D I V E a a2 : H' ∈ Δ' ⊢ Holds D I V E H'
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp only [a2]
Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a1_left : Holds D I V E H a1_right : ∀ a ∈ Δ', Holds D I V E a a2 : H' = H ⊢ Holds D I V E H'
Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a1_left : Holds D I V E H a1_right : ∀ a ∈ Δ', Holds D I V E a a2 : H' = H ⊢ Holds D I V E H
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
exact a1_left
Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a1_left : Holds D I V E H a1_right : ∀ a ∈ Δ', Holds D I V E a a2 : H' = H ⊢ Holds D I V E H
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
exact a1_right H' a2
Δ : List Formula F : Formula Δ' : List Formula H phi✝ : Formula a✝ : IsDeduct (H :: H :: Δ') phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: H :: Δ', Holds D I V E H_1) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a1_left : Holds D I V E H a1_right : ∀ a ∈ Δ', Holds D I V E a a2 : H' ∈ Δ' ⊢ Holds D I V E H'
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro D I V E a1
Δ : List Formula F : Formula Δ_1 Δ_2 : List Formula H_1 H_2 phi✝ : Formula a✝ : IsDeduct (Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2) phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2, Holds D I V E H) → Holds D I V E phi✝ ⊢ ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ_1 ++ [H_2] ++ [H_1] ++ Δ_2, Holds D I V E H) → Holds D I V E phi✝
Δ : List Formula F : Formula Δ_1 Δ_2 : List Formula H_1 H_2 phi✝ : Formula a✝ : IsDeduct (Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2) phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2, Holds D I V E H) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ_1 ++ [H_2] ++ [H_1] ++ Δ_2, Holds D I V E H ⊢ Holds D I V E phi✝
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
apply ih_2
Δ : List Formula F : Formula Δ_1 Δ_2 : List Formula H_1 H_2 phi✝ : Formula a✝ : IsDeduct (Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2) phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2, Holds D I V E H) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ_1 ++ [H_2] ++ [H_1] ++ Δ_2, Holds D I V E H ⊢ Holds D I V E phi✝
case a Δ : List Formula F : Formula Δ_1 Δ_2 : List Formula H_1 H_2 phi✝ : Formula a✝ : IsDeduct (Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2) phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2, Holds D I V E H) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ_1 ++ [H_2] ++ [H_1] ++ Δ_2, Holds D I V E H ⊢ ∀ H ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2, Holds D I V E H
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro H' a2
case a Δ : List Formula F : Formula Δ_1 Δ_2 : List Formula H_1 H_2 phi✝ : Formula a✝ : IsDeduct (Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2) phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2, Holds D I V E H) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ_1 ++ [H_2] ++ [H_1] ++ Δ_2, Holds D I V E H ⊢ ∀ H ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2, Holds D I V E H
case a Δ : List Formula F : Formula Δ_1 Δ_2 : List Formula H_1 H_2 phi✝ : Formula a✝ : IsDeduct (Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2) phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2, Holds D I V E H) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ_1 ++ [H_2] ++ [H_1] ++ Δ_2, Holds D I V E H H' : Formula a2 : H' ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2 ⊢ Holds D I V E H'
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp at a1
case a Δ : List Formula F : Formula Δ_1 Δ_2 : List Formula H_1 H_2 phi✝ : Formula a✝ : IsDeduct (Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2) phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2, Holds D I V E H) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ_1 ++ [H_2] ++ [H_1] ++ Δ_2, Holds D I V E H H' : Formula a2 : H' ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2 ⊢ Holds D I V E H'
case a Δ : List Formula F : Formula Δ_1 Δ_2 : List Formula H_1 H_2 phi✝ : Formula a✝ : IsDeduct (Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2) phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2, Holds D I V E H) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a2 : H' ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2 a1 : ∀ (H : Formula), H ∈ Δ_1 ∨ H = H_2 ∨ H = H_1 ∨ H ∈ Δ_2 → Holds D I V E H ⊢ Holds D I V E H'
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
apply a1
case a Δ : List Formula F : Formula Δ_1 Δ_2 : List Formula H_1 H_2 phi✝ : Formula a✝ : IsDeduct (Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2) phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2, Holds D I V E H) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a2 : H' ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2 a1 : ∀ (H : Formula), H ∈ Δ_1 ∨ H = H_2 ∨ H = H_1 ∨ H ∈ Δ_2 → Holds D I V E H ⊢ Holds D I V E H'
case a.a Δ : List Formula F : Formula Δ_1 Δ_2 : List Formula H_1 H_2 phi✝ : Formula a✝ : IsDeduct (Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2) phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2, Holds D I V E H) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a2 : H' ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2 a1 : ∀ (H : Formula), H ∈ Δ_1 ∨ H = H_2 ∨ H = H_1 ∨ H ∈ Δ_2 → Holds D I V E H ⊢ H' ∈ Δ_1 ∨ H' = H_2 ∨ H' = H_1 ∨ H' ∈ Δ_2
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp at a2
case a.a Δ : List Formula F : Formula Δ_1 Δ_2 : List Formula H_1 H_2 phi✝ : Formula a✝ : IsDeduct (Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2) phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2, Holds D I V E H) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a2 : H' ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2 a1 : ∀ (H : Formula), H ∈ Δ_1 ∨ H = H_2 ∨ H = H_1 ∨ H ∈ Δ_2 → Holds D I V E H ⊢ H' ∈ Δ_1 ∨ H' = H_2 ∨ H' = H_1 ∨ H' ∈ Δ_2
case a.a Δ : List Formula F : Formula Δ_1 Δ_2 : List Formula H_1 H_2 phi✝ : Formula a✝ : IsDeduct (Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2) phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2, Holds D I V E H) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a1 : ∀ (H : Formula), H ∈ Δ_1 ∨ H = H_2 ∨ H = H_1 ∨ H ∈ Δ_2 → Holds D I V E H a2 : H' ∈ Δ_1 ∨ H' = H_1 ∨ H' = H_2 ∨ H' ∈ Δ_2 ⊢ H' ∈ Δ_1 ∨ H' = H_2 ∨ H' = H_1 ∨ H' ∈ Δ_2
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
tauto
case a.a Δ : List Formula F : Formula Δ_1 Δ_2 : List Formula H_1 H_2 phi✝ : Formula a✝ : IsDeduct (Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2) phi✝ ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ_1 ++ [H_1] ++ [H_2] ++ Δ_2, Holds D I V E H) → Holds D I V E phi✝ D : Type I : Interpretation D V : VarAssignment D E : Env H' : Formula a1 : ∀ (H : Formula), H ∈ Δ_1 ∨ H = H_2 ∨ H = H_1 ∨ H ∈ Δ_2 → Holds D I V E H a2 : H' ∈ Δ_1 ∨ H' = H_1 ∨ H' = H_2 ∨ H' ∈ Δ_2 ⊢ H' ∈ Δ_1 ∨ H' = H_2 ∨ H' = H_1 ∨ H' ∈ Δ_2
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro D I V E a1
Δ : List Formula F phi : Formula ⊢ ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [phi], Holds D I V E H) → Holds D I V E phi
Δ : List Formula F phi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ [phi], Holds D I V E H ⊢ Holds D I V E phi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp at a1
Δ : List Formula F phi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ [phi], Holds D I V E H ⊢ Holds D I V E phi
Δ : List Formula F phi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a1 : Holds D I V E phi ⊢ Holds D I V E phi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
exact a1
Δ : List Formula F phi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a1 : Holds D I V E phi ⊢ Holds D I V E phi
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro D I V E _
Δ : List Formula F : Formula ⊢ ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [], Holds D I V E H) → Holds D I V E true_
Δ : List Formula F : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E true_
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp only [Holds]
Δ : List Formula F : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E true_
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro D I V E _
Δ : List Formula F phi psi : Formula ⊢ ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [], Holds D I V E H) → Holds D I V E (phi.imp_ (psi.imp_ phi))
Δ : List Formula F phi psi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E (phi.imp_ (psi.imp_ phi))
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp only [Holds]
Δ : List Formula F phi psi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E (phi.imp_ (psi.imp_ phi))
Δ : List Formula F phi psi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E phi → Holds D I V E psi → Holds D I V E phi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
tauto
Δ : List Formula F phi psi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E phi → Holds D I V E psi → Holds D I V E phi
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro D I V E _
Δ : List Formula F phi psi chi : Formula ⊢ ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [], Holds D I V E H) → Holds D I V E ((phi.imp_ (psi.imp_ chi)).imp_ ((phi.imp_ psi).imp_ (phi.imp_ chi)))
Δ : List Formula F phi psi chi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E ((phi.imp_ (psi.imp_ chi)).imp_ ((phi.imp_ psi).imp_ (phi.imp_ chi)))
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp only [Holds]
Δ : List Formula F phi psi chi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E ((phi.imp_ (psi.imp_ chi)).imp_ ((phi.imp_ psi).imp_ (phi.imp_ chi)))
Δ : List Formula F phi psi chi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ (Holds D I V E phi → Holds D I V E psi → Holds D I V E chi) → (Holds D I V E phi → Holds D I V E psi) → Holds D I V E phi → Holds D I V E chi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
tauto
Δ : List Formula F phi psi chi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ (Holds D I V E phi → Holds D I V E psi → Holds D I V E chi) → (Holds D I V E phi → Holds D I V E psi) → Holds D I V E phi → Holds D I V E chi
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro D I V E _
Δ : List Formula F phi psi : Formula ⊢ ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [], Holds D I V E H) → Holds D I V E ((phi.not_.imp_ psi.not_).imp_ (psi.imp_ phi))
Δ : List Formula F phi psi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E ((phi.not_.imp_ psi.not_).imp_ (psi.imp_ phi))
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp only [Holds]
Δ : List Formula F phi psi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E ((phi.not_.imp_ psi.not_).imp_ (psi.imp_ phi))
Δ : List Formula F phi psi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ (¬Holds D I V E phi → ¬Holds D I V E psi) → Holds D I V E psi → Holds D I V E phi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
tauto
Δ : List Formula F phi psi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ (¬Holds D I V E phi → ¬Holds D I V E psi) → Holds D I V E psi → Holds D I V E phi
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro D I V E a1
Δ : List Formula F : Formula Δ' : List Formula phi psi : Formula a✝¹ : IsDeduct Δ' (phi.imp_ psi) a✝ : IsDeduct Δ' phi ih_major : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E (phi.imp_ psi) ih_minor : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi ⊢ ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E psi
Δ : List Formula F : Formula Δ' : List Formula phi psi : Formula a✝¹ : IsDeduct Δ' (phi.imp_ psi) a✝ : IsDeduct Δ' phi ih_major : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E (phi.imp_ psi) ih_minor : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H ⊢ Holds D I V E psi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp only [Holds] at ih_major
Δ : List Formula F : Formula Δ' : List Formula phi psi : Formula a✝¹ : IsDeduct Δ' (phi.imp_ psi) a✝ : IsDeduct Δ' phi ih_major : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E (phi.imp_ psi) ih_minor : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H ⊢ Holds D I V E psi
Δ : List Formula F : Formula Δ' : List Formula phi psi : Formula a✝¹ : IsDeduct Δ' (phi.imp_ psi) a✝ : IsDeduct Δ' phi ih_minor : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H ih_major : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi → Holds D I V E psi ⊢ Holds D I V E psi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
apply ih_major
Δ : List Formula F : Formula Δ' : List Formula phi psi : Formula a✝¹ : IsDeduct Δ' (phi.imp_ psi) a✝ : IsDeduct Δ' phi ih_minor : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H ih_major : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi → Holds D I V E psi ⊢ Holds D I V E psi
case a Δ : List Formula F : Formula Δ' : List Formula phi psi : Formula a✝¹ : IsDeduct Δ' (phi.imp_ psi) a✝ : IsDeduct Δ' phi ih_minor : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H ih_major : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi → Holds D I V E psi ⊢ ∀ H ∈ Δ', Holds D I V E H case a Δ : List Formula F : Formula Δ' : List Formula phi psi : Formula a✝¹ : IsDeduct Δ' (phi.imp_ psi) a✝ : IsDeduct Δ' phi ih_minor : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H ih_major : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi → Holds D I V E psi ⊢ Holds D I V E phi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro H' a2
case a Δ : List Formula F : Formula Δ' : List Formula phi psi : Formula a✝¹ : IsDeduct Δ' (phi.imp_ psi) a✝ : IsDeduct Δ' phi ih_minor : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H ih_major : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi → Holds D I V E psi ⊢ ∀ H ∈ Δ', Holds D I V E H
case a Δ : List Formula F : Formula Δ' : List Formula phi psi : Formula a✝¹ : IsDeduct Δ' (phi.imp_ psi) a✝ : IsDeduct Δ' phi ih_minor : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H ih_major : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi → Holds D I V E psi H' : Formula a2 : H' ∈ Δ' ⊢ Holds D I V E H'
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
exact a1 H' a2
case a Δ : List Formula F : Formula Δ' : List Formula phi psi : Formula a✝¹ : IsDeduct Δ' (phi.imp_ psi) a✝ : IsDeduct Δ' phi ih_minor : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H ih_major : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi → Holds D I V E psi H' : Formula a2 : H' ∈ Δ' ⊢ Holds D I V E H'
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
apply ih_minor
case a Δ : List Formula F : Formula Δ' : List Formula phi psi : Formula a✝¹ : IsDeduct Δ' (phi.imp_ psi) a✝ : IsDeduct Δ' phi ih_minor : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H ih_major : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi → Holds D I V E psi ⊢ Holds D I V E phi
case a.a Δ : List Formula F : Formula Δ' : List Formula phi psi : Formula a✝¹ : IsDeduct Δ' (phi.imp_ psi) a✝ : IsDeduct Δ' phi ih_minor : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H ih_major : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi → Holds D I V E psi ⊢ ∀ H ∈ Δ', Holds D I V E H
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
exact a1
case a.a Δ : List Formula F : Formula Δ' : List Formula phi psi : Formula a✝¹ : IsDeduct Δ' (phi.imp_ psi) a✝ : IsDeduct Δ' phi ih_minor : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H ih_major : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E phi → Holds D I V E psi ⊢ ∀ H ∈ Δ', Holds D I V E H
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro D I V E a1
Δ : List Formula F : Formula Δ' : List Formula H phi : Formula a✝ : IsDeduct (H :: Δ') phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: Δ', Holds D I V E H_1) → Holds D I V E phi ⊢ ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ Δ', Holds D I V E H) → Holds D I V E (H.imp_ phi)
Δ : List Formula F : Formula Δ' : List Formula H phi : Formula a✝ : IsDeduct (H :: Δ') phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: Δ', Holds D I V E H_1) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H ⊢ Holds D I V E (H.imp_ phi)
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp only [Holds]
Δ : List Formula F : Formula Δ' : List Formula H phi : Formula a✝ : IsDeduct (H :: Δ') phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: Δ', Holds D I V E H_1) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H ⊢ Holds D I V E (H.imp_ phi)
Δ : List Formula F : Formula Δ' : List Formula H phi : Formula a✝ : IsDeduct (H :: Δ') phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: Δ', Holds D I V E H_1) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H ⊢ Holds D I V E H → Holds D I V E phi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro a2
Δ : List Formula F : Formula Δ' : List Formula H phi : Formula a✝ : IsDeduct (H :: Δ') phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: Δ', Holds D I V E H_1) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H ⊢ Holds D I V E H → Holds D I V E phi
Δ : List Formula F : Formula Δ' : List Formula H phi : Formula a✝ : IsDeduct (H :: Δ') phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: Δ', Holds D I V E H_1) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H a2 : Holds D I V E H ⊢ Holds D I V E phi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
apply ih_2
Δ : List Formula F : Formula Δ' : List Formula H phi : Formula a✝ : IsDeduct (H :: Δ') phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: Δ', Holds D I V E H_1) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H a2 : Holds D I V E H ⊢ Holds D I V E phi
case a Δ : List Formula F : Formula Δ' : List Formula H phi : Formula a✝ : IsDeduct (H :: Δ') phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: Δ', Holds D I V E H_1) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H a2 : Holds D I V E H ⊢ ∀ H_1 ∈ H :: Δ', Holds D I V E H_1
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp
case a Δ : List Formula F : Formula Δ' : List Formula H phi : Formula a✝ : IsDeduct (H :: Δ') phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: Δ', Holds D I V E H_1) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H a2 : Holds D I V E H ⊢ ∀ H_1 ∈ H :: Δ', Holds D I V E H_1
case a Δ : List Formula F : Formula Δ' : List Formula H phi : Formula a✝ : IsDeduct (H :: Δ') phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: Δ', Holds D I V E H_1) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H a2 : Holds D I V E H ⊢ Holds D I V E H ∧ ∀ a ∈ Δ', Holds D I V E a
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
constructor
case a Δ : List Formula F : Formula Δ' : List Formula H phi : Formula a✝ : IsDeduct (H :: Δ') phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: Δ', Holds D I V E H_1) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H a2 : Holds D I V E H ⊢ Holds D I V E H ∧ ∀ a ∈ Δ', Holds D I V E a
case a.left Δ : List Formula F : Formula Δ' : List Formula H phi : Formula a✝ : IsDeduct (H :: Δ') phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: Δ', Holds D I V E H_1) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H a2 : Holds D I V E H ⊢ Holds D I V E H case a.right Δ : List Formula F : Formula Δ' : List Formula H phi : Formula a✝ : IsDeduct (H :: Δ') phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: Δ', Holds D I V E H_1) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H a2 : Holds D I V E H ⊢ ∀ a ∈ Δ', Holds D I V E a
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
exact a2
case a.left Δ : List Formula F : Formula Δ' : List Formula H phi : Formula a✝ : IsDeduct (H :: Δ') phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: Δ', Holds D I V E H_1) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H a2 : Holds D I V E H ⊢ Holds D I V E H
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
exact a1
case a.right Δ : List Formula F : Formula Δ' : List Formula H phi : Formula a✝ : IsDeduct (H :: Δ') phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H_1 ∈ H :: Δ', Holds D I V E H_1) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a1 : ∀ H ∈ Δ', Holds D I V E H a2 : Holds D I V E H ⊢ ∀ a ∈ Δ', Holds D I V E a
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro D I V E _
Δ : List Formula F : Formula v : VarName phi psi : Formula ⊢ ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [], Holds D I V E H) → Holds D I V E ((forall_ v (phi.imp_ psi)).imp_ ((forall_ v phi).imp_ (forall_ v psi)))
Δ : List Formula F : Formula v : VarName phi psi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E ((forall_ v (phi.imp_ psi)).imp_ ((forall_ v phi).imp_ (forall_ v psi)))
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp only [Holds]
Δ : List Formula F : Formula v : VarName phi psi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E ((forall_ v (phi.imp_ psi)).imp_ ((forall_ v phi).imp_ (forall_ v psi)))
Δ : List Formula F : Formula v : VarName phi psi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ (∀ (d : D), Holds D I (Function.updateITE V v d) E phi → Holds D I (Function.updateITE V v d) E psi) → (∀ (d : D), Holds D I (Function.updateITE V v d) E phi) → ∀ (d : D), Holds D I (Function.updateITE V v d) E psi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro a2 a3 d
Δ : List Formula F : Formula v : VarName phi psi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ (∀ (d : D), Holds D I (Function.updateITE V v d) E phi → Holds D I (Function.updateITE V v d) E psi) → (∀ (d : D), Holds D I (Function.updateITE V v d) E phi) → ∀ (d : D), Holds D I (Function.updateITE V v d) E psi
Δ : List Formula F : Formula v : VarName phi psi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : ∀ (d : D), Holds D I (Function.updateITE V v d) E phi → Holds D I (Function.updateITE V v d) E psi a3 : ∀ (d : D), Holds D I (Function.updateITE V v d) E phi d : D ⊢ Holds D I (Function.updateITE V v d) E psi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
apply a2 d
Δ : List Formula F : Formula v : VarName phi psi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : ∀ (d : D), Holds D I (Function.updateITE V v d) E phi → Holds D I (Function.updateITE V v d) E psi a3 : ∀ (d : D), Holds D I (Function.updateITE V v d) E phi d : D ⊢ Holds D I (Function.updateITE V v d) E psi
Δ : List Formula F : Formula v : VarName phi psi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : ∀ (d : D), Holds D I (Function.updateITE V v d) E phi → Holds D I (Function.updateITE V v d) E psi a3 : ∀ (d : D), Holds D I (Function.updateITE V v d) E phi d : D ⊢ Holds D I (Function.updateITE V v d) E phi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
exact a3 d
Δ : List Formula F : Formula v : VarName phi psi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : ∀ (d : D), Holds D I (Function.updateITE V v d) E phi → Holds D I (Function.updateITE V v d) E psi a3 : ∀ (d : D), Holds D I (Function.updateITE V v d) E phi d : D ⊢ Holds D I (Function.updateITE V v d) E phi
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro D I V E _
Δ : List Formula F : Formula v t : VarName phi : Formula ⊢ ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [], Holds D I V E H) → Holds D I V E ((forall_ v phi).imp_ (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi))
Δ : List Formula F : Formula v t : VarName phi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E ((forall_ v phi).imp_ (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi))
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
obtain s1 := FOL.NV.Sub.Var.All.Rec.Fresh.substitution_theorem D I V E (Function.updateITE id v t) freshChar phi
Δ : List Formula F : Formula v t : VarName phi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E ((forall_ v phi).imp_ (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi))
Δ : List Formula F : Formula v t : VarName phi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H s1 : Holds D I V E (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi) ↔ Holds D I (V ∘ Function.updateITE id v t) E phi ⊢ Holds D I V E ((forall_ v phi).imp_ (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi))
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp only [Holds]
Δ : List Formula F : Formula v t : VarName phi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H s1 : Holds D I V E (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi) ↔ Holds D I (V ∘ Function.updateITE id v t) E phi ⊢ Holds D I V E ((forall_ v phi).imp_ (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi))
Δ : List Formula F : Formula v t : VarName phi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H s1 : Holds D I V E (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi) ↔ Holds D I (V ∘ Function.updateITE id v t) E phi ⊢ (∀ (d : D), Holds D I (Function.updateITE V v d) E phi) → Holds D I V E (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi)
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro a2
Δ : List Formula F : Formula v t : VarName phi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H s1 : Holds D I V E (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi) ↔ Holds D I (V ∘ Function.updateITE id v t) E phi ⊢ (∀ (d : D), Holds D I (Function.updateITE V v d) E phi) → Holds D I V E (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi)
Δ : List Formula F : Formula v t : VarName phi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H s1 : Holds D I V E (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi) ↔ Holds D I (V ∘ Function.updateITE id v t) E phi a2 : ∀ (d : D), Holds D I (Function.updateITE V v d) E phi ⊢ Holds D I V E (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi)
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp only [s1]
Δ : List Formula F : Formula v t : VarName phi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H s1 : Holds D I V E (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi) ↔ Holds D I (V ∘ Function.updateITE id v t) E phi a2 : ∀ (d : D), Holds D I (Function.updateITE V v d) E phi ⊢ Holds D I V E (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi)
Δ : List Formula F : Formula v t : VarName phi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H s1 : Holds D I V E (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi) ↔ Holds D I (V ∘ Function.updateITE id v t) E phi a2 : ∀ (d : D), Holds D I (Function.updateITE V v d) E phi ⊢ Holds D I (V ∘ Function.updateITE id v t) E phi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp only [Function.updateITE_comp_left]
Δ : List Formula F : Formula v t : VarName phi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H s1 : Holds D I V E (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi) ↔ Holds D I (V ∘ Function.updateITE id v t) E phi a2 : ∀ (d : D), Holds D I (Function.updateITE V v d) E phi ⊢ Holds D I (V ∘ Function.updateITE id v t) E phi
Δ : List Formula F : Formula v t : VarName phi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H s1 : Holds D I V E (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi) ↔ Holds D I (V ∘ Function.updateITE id v t) E phi a2 : ∀ (d : D), Holds D I (Function.updateITE V v d) E phi ⊢ Holds D I (Function.updateITE (V ∘ id) v (V t)) E phi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp
Δ : List Formula F : Formula v t : VarName phi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H s1 : Holds D I V E (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi) ↔ Holds D I (V ∘ Function.updateITE id v t) E phi a2 : ∀ (d : D), Holds D I (Function.updateITE V v d) E phi ⊢ Holds D I (Function.updateITE (V ∘ id) v (V t)) E phi
Δ : List Formula F : Formula v t : VarName phi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H s1 : Holds D I V E (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi) ↔ Holds D I (V ∘ Function.updateITE id v t) E phi a2 : ∀ (d : D), Holds D I (Function.updateITE V v d) E phi ⊢ Holds D I (Function.updateITE V v (V t)) E phi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
exact a2 (V t)
Δ : List Formula F : Formula v t : VarName phi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H s1 : Holds D I V E (Sub.Var.All.Rec.Fresh.sub (Function.updateITE id v t) freshChar phi) ↔ Holds D I (V ∘ Function.updateITE id v t) E phi a2 : ∀ (d : D), Holds D I (Function.updateITE V v d) E phi ⊢ Holds D I (Function.updateITE V v (V t)) E phi
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro D I V E _
Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi ⊢ ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [], Holds D I V E H) → Holds D I V E (phi.imp_ (forall_ v phi))
Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E (phi.imp_ (forall_ v phi))
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp only [Holds]
Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E (phi.imp_ (forall_ v phi))
Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E phi → ∀ (d : D), Holds D I (Function.updateITE V v d) E phi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro a2 d
Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E phi → ∀ (d : D), Holds D I (Function.updateITE V v d) E phi
Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D ⊢ Holds D I (Function.updateITE V v d) E phi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
have s1 : Holds D I (Function.updateITE V v d) E phi ↔ Holds D I V E phi
Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D ⊢ Holds D I (Function.updateITE V v d) E phi
case s1 Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D ⊢ Holds D I (Function.updateITE V v d) E phi ↔ Holds D I V E phi Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D s1 : Holds D I (Function.updateITE V v d) E phi ↔ Holds D I V E phi ⊢ Holds D I (Function.updateITE V v d) E phi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
{ apply Holds_coincide_Var intro v' a1 simp only [Function.updateITE] split_ifs case _ c1 => subst c1 contradiction case _ c1 => rfl }
case s1 Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D ⊢ Holds D I (Function.updateITE V v d) E phi ↔ Holds D I V E phi Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D s1 : Holds D I (Function.updateITE V v d) E phi ↔ Holds D I V E phi ⊢ Holds D I (Function.updateITE V v d) E phi
Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D s1 : Holds D I (Function.updateITE V v d) E phi ↔ Holds D I V E phi ⊢ Holds D I (Function.updateITE V v d) E phi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp only [s1]
Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D s1 : Holds D I (Function.updateITE V v d) E phi ↔ Holds D I V E phi ⊢ Holds D I (Function.updateITE V v d) E phi
Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D s1 : Holds D I (Function.updateITE V v d) E phi ↔ Holds D I V E phi ⊢ Holds D I V E phi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
exact a2
Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D s1 : Holds D I (Function.updateITE V v d) E phi ↔ Holds D I V E phi ⊢ Holds D I V E phi
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
apply Holds_coincide_Var
case s1 Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D ⊢ Holds D I (Function.updateITE V v d) E phi ↔ Holds D I V E phi
case s1.h1 Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D ⊢ ∀ (v_1 : VarName), isFreeIn v_1 phi → Function.updateITE V v d v_1 = V v_1
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro v' a1
case s1.h1 Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D ⊢ ∀ (v_1 : VarName), isFreeIn v_1 phi → Function.updateITE V v d v_1 = V v_1
case s1.h1 Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D v' : VarName a1 : isFreeIn v' phi ⊢ Function.updateITE V v d v' = V v'
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp only [Function.updateITE]
case s1.h1 Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D v' : VarName a1 : isFreeIn v' phi ⊢ Function.updateITE V v d v' = V v'
case s1.h1 Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D v' : VarName a1 : isFreeIn v' phi ⊢ (if v' = v then d else V v') = V v'
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
split_ifs
case s1.h1 Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D v' : VarName a1 : isFreeIn v' phi ⊢ (if v' = v then d else V v') = V v'
case pos Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D v' : VarName a1 : isFreeIn v' phi h✝ : v' = v ⊢ d = V v' case neg Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D v' : VarName a1 : isFreeIn v' phi h✝ : ¬v' = v ⊢ V v' = V v'
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
case _ c1 => subst c1 contradiction
Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D v' : VarName a1 : isFreeIn v' phi c1 : v' = v ⊢ d = V v'
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
case _ c1 => rfl
Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D v' : VarName a1 : isFreeIn v' phi c1 : ¬v' = v ⊢ V v' = V v'
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
subst c1
Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D v' : VarName a1 : isFreeIn v' phi c1 : v' = v ⊢ d = V v'
Δ : List Formula F phi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D v' : VarName a1 : isFreeIn v' phi ih : ¬isFreeIn v' phi ⊢ d = V v'
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
contradiction
Δ : List Formula F phi : Formula D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D v' : VarName a1 : isFreeIn v' phi ih : ¬isFreeIn v' phi ⊢ d = V v'
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
rfl
Δ : List Formula F : Formula v : VarName phi : Formula ih : ¬isFreeIn v phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : Holds D I V E phi d : D v' : VarName a1 : isFreeIn v' phi c1 : ¬v' = v ⊢ V v' = V v'
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro D I V E _
Δ : List Formula F : Formula v : VarName phi : Formula a✝ : IsDeduct [] phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [], Holds D I V E H) → Holds D I V E phi ⊢ ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [], Holds D I V E H) → Holds D I V E (forall_ v phi)
Δ : List Formula F : Formula v : VarName phi : Formula a✝¹ : IsDeduct [] phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [], Holds D I V E H) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E (forall_ v phi)
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp only [Holds]
Δ : List Formula F : Formula v : VarName phi : Formula a✝¹ : IsDeduct [] phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [], Holds D I V E H) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E (forall_ v phi)
Δ : List Formula F : Formula v : VarName phi : Formula a✝¹ : IsDeduct [] phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [], Holds D I V E H) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ ∀ (d : D), Holds D I (Function.updateITE V v d) E phi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro d
Δ : List Formula F : Formula v : VarName phi : Formula a✝¹ : IsDeduct [] phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [], Holds D I V E H) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ ∀ (d : D), Holds D I (Function.updateITE V v d) E phi
Δ : List Formula F : Formula v : VarName phi : Formula a✝¹ : IsDeduct [] phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [], Holds D I V E H) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H d : D ⊢ Holds D I (Function.updateITE V v d) E phi
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
apply ih_2
Δ : List Formula F : Formula v : VarName phi : Formula a✝¹ : IsDeduct [] phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [], Holds D I V E H) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H d : D ⊢ Holds D I (Function.updateITE V v d) E phi
case a Δ : List Formula F : Formula v : VarName phi : Formula a✝¹ : IsDeduct [] phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [], Holds D I V E H) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H d : D ⊢ ∀ H ∈ [], Holds D I (Function.updateITE V v d) E H
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp
case a Δ : List Formula F : Formula v : VarName phi : Formula a✝¹ : IsDeduct [] phi ih_2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [], Holds D I V E H) → Holds D I V E phi D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H d : D ⊢ ∀ H ∈ [], Holds D I (Function.updateITE V v d) E H
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro D I V E _
Δ : List Formula F : Formula v : VarName ⊢ ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [], Holds D I V E H) → Holds D I V E (eq_ v v)
Δ : List Formula F : Formula v : VarName D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E (eq_ v v)
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp only [Holds]
Δ : List Formula F : Formula v : VarName D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E (eq_ v v)
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro D I V E _
Δ : List Formula F : Formula x_0 x_1 y_0 y_1 : VarName ⊢ ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [], Holds D I V E H) → Holds D I V E (((eq_ x_0 y_0).and_ (eq_ x_1 y_1)).imp_ ((eq_ x_0 x_1).iff_ (eq_ y_0 y_1)))
Δ : List Formula F : Formula x_0 x_1 y_0 y_1 : VarName D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E (((eq_ x_0 y_0).and_ (eq_ x_1 y_1)).imp_ ((eq_ x_0 x_1).iff_ (eq_ y_0 y_1)))
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp only [Holds]
Δ : List Formula F : Formula x_0 x_1 y_0 y_1 : VarName D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E (((eq_ x_0 y_0).and_ (eq_ x_1 y_1)).imp_ ((eq_ x_0 x_1).iff_ (eq_ y_0 y_1)))
Δ : List Formula F : Formula x_0 x_1 y_0 y_1 : VarName D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ V x_0 = V y_0 ∧ V x_1 = V y_1 → (V x_0 = V x_1 ↔ V y_0 = V y_1)
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro a2
Δ : List Formula F : Formula x_0 x_1 y_0 y_1 : VarName D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ V x_0 = V y_0 ∧ V x_1 = V y_1 → (V x_0 = V x_1 ↔ V y_0 = V y_1)
Δ : List Formula F : Formula x_0 x_1 y_0 y_1 : VarName D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : V x_0 = V y_0 ∧ V x_1 = V y_1 ⊢ V x_0 = V x_1 ↔ V y_0 = V y_1
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
cases a2
Δ : List Formula F : Formula x_0 x_1 y_0 y_1 : VarName D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2 : V x_0 = V y_0 ∧ V x_1 = V y_1 ⊢ V x_0 = V x_1 ↔ V y_0 = V y_1
case intro Δ : List Formula F : Formula x_0 x_1 y_0 y_1 : VarName D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H left✝ : V x_0 = V y_0 right✝ : V x_1 = V y_1 ⊢ V x_0 = V x_1 ↔ V y_0 = V y_1
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
case _ a2_left a2_right => simp only [a2_left] simp only [a2_right]
Δ : List Formula F : Formula x_0 x_1 y_0 y_1 : VarName D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2_left : V x_0 = V y_0 a2_right : V x_1 = V y_1 ⊢ V x_0 = V x_1 ↔ V y_0 = V y_1
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp only [a2_left]
Δ : List Formula F : Formula x_0 x_1 y_0 y_1 : VarName D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2_left : V x_0 = V y_0 a2_right : V x_1 = V y_1 ⊢ V x_0 = V x_1 ↔ V y_0 = V y_1
Δ : List Formula F : Formula x_0 x_1 y_0 y_1 : VarName D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2_left : V x_0 = V y_0 a2_right : V x_1 = V y_1 ⊢ V y_0 = V x_1 ↔ V y_0 = V y_1
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp only [a2_right]
Δ : List Formula F : Formula x_0 x_1 y_0 y_1 : VarName D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a2_left : V x_0 = V y_0 a2_right : V x_1 = V y_1 ⊢ V y_0 = V x_1 ↔ V y_0 = V y_1
no goals
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro D I V E _
Δ : List Formula F : Formula X : PredName xs ys : List VarName ih_1 : xs.length = ys.length ⊢ ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), (∀ H ∈ [], Holds D I V E H) → Holds D I V E ((List.foldr and_ true_ (List.zipWith eq_ xs ys)).imp_ ((pred_var_ X xs).iff_ (pred_var_ X ys)))
Δ : List Formula F : Formula X : PredName xs ys : List VarName ih_1 : xs.length = ys.length D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E ((List.foldr and_ true_ (List.zipWith eq_ xs ys)).imp_ ((pred_var_ X xs).iff_ (pred_var_ X ys)))
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
simp only [Holds]
Δ : List Formula F : Formula X : PredName xs ys : List VarName ih_1 : xs.length = ys.length D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E ((List.foldr and_ true_ (List.zipWith eq_ xs ys)).imp_ ((pred_var_ X xs).iff_ (pred_var_ X ys)))
Δ : List Formula F : Formula X : PredName xs ys : List VarName ih_1 : xs.length = ys.length D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E (List.foldr and_ true_ (List.zipWith eq_ xs ys)) → (I.pred_var_ X (List.map V xs) ↔ I.pred_var_ X (List.map V ys))
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Program/Backend.lean
FOL.NV.Program.Backend.soundness
[793, 1]
[979, 13]
intro a1
Δ : List Formula F : Formula X : PredName xs ys : List VarName ih_1 : xs.length = ys.length D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H ⊢ Holds D I V E (List.foldr and_ true_ (List.zipWith eq_ xs ys)) → (I.pred_var_ X (List.map V xs) ↔ I.pred_var_ X (List.map V ys))
Δ : List Formula F : Formula X : PredName xs ys : List VarName ih_1 : xs.length = ys.length D : Type I : Interpretation D V : VarAssignment D E : Env a✝ : ∀ H ∈ [], Holds D I V E H a1 : Holds D I V E (List.foldr and_ true_ (List.zipWith eq_ xs ys)) ⊢ I.pred_var_ X (List.map V xs) ↔ I.pred_var_ X (List.map V ys)