url
stringclasses 147
values | commit
stringclasses 147
values | file_path
stringlengths 7
101
| full_name
stringlengths 1
94
| start
stringlengths 6
10
| end
stringlengths 6
11
| tactic
stringlengths 1
11.2k
| state_before
stringlengths 3
2.09M
| state_after
stringlengths 6
2.09M
|
|---|---|---|---|---|---|---|---|---|
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/NV/Sub/Var/One/Ind/Sub.lean | FOL.NV.Sub.Var.One.Ind.substitution_theorem | [298, 1] | [424, 17] | simp only [if_pos c3] | D : Type
I : Interpretation D
v t : VarName
F F' : Formula
h1_X : DefName
h1_xs : List VarName
h1_v h1_t : VarName
V : VarAssignment D
hd : Definition
tl : List Definition
ih :
Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs))
c1 : h1_X = hd.name ∧ h1_xs.length = hd.args.length
c2 : h1_X = hd.name ∧ (List.map (fun x => if h1_v = x then h1_t else x) h1_xs).length = hd.args.length
v' : VarName
a1 : isFreeIn v' hd.q
x : VarName
a✝ : x ∈ h1_xs
c3 : h1_v = x
⊢ V h1_t = V h1_t | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/NV/Sub/Var/One/Ind/Sub.lean | FOL.NV.Sub.Var.One.Ind.substitution_theorem | [298, 1] | [424, 17] | simp only [if_neg c3] | D : Type
I : Interpretation D
v t : VarName
F F' : Formula
h1_X : DefName
h1_xs : List VarName
h1_v h1_t : VarName
V : VarAssignment D
hd : Definition
tl : List Definition
ih :
Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs))
c1 : h1_X = hd.name ∧ h1_xs.length = hd.args.length
c2 : h1_X = hd.name ∧ (List.map (fun x => if h1_v = x then h1_t else x) h1_xs).length = hd.args.length
v' : VarName
a1 : isFreeIn v' hd.q
x : VarName
a✝ : x ∈ h1_xs
c3 : ¬h1_v = x
⊢ V x = V x | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/NV/Sub/Var/One/Ind/Sub.lean | FOL.NV.Sub.Var.One.Ind.substitution_theorem | [298, 1] | [424, 17] | simp only [isFreeIn_iff_mem_freeVarSet] at a1 | case h1.h1
D : Type
I : Interpretation D
v t : VarName
F F' : Formula
h1_X : DefName
h1_xs : List VarName
h1_v h1_t : VarName
V : VarAssignment D
hd : Definition
tl : List Definition
ih :
Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs))
c1 : h1_X = hd.name ∧ h1_xs.length = hd.args.length
c2 : h1_X = hd.name ∧ (List.map (fun x => if h1_v = x then h1_t else x) h1_xs).length = hd.args.length
v' : VarName
a1 : isFreeIn v' hd.q
s1 : List.map (Function.updateITE V h1_v (V h1_t)) h1_xs = List.map (V ∘ fun x => if h1_v = x then h1_t else x) h1_xs
⊢ v' ∈ hd.args | case h1.h1
D : Type
I : Interpretation D
v t : VarName
F F' : Formula
h1_X : DefName
h1_xs : List VarName
h1_v h1_t : VarName
V : VarAssignment D
hd : Definition
tl : List Definition
ih :
Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs))
c1 : h1_X = hd.name ∧ h1_xs.length = hd.args.length
c2 : h1_X = hd.name ∧ (List.map (fun x => if h1_v = x then h1_t else x) h1_xs).length = hd.args.length
v' : VarName
s1 : List.map (Function.updateITE V h1_v (V h1_t)) h1_xs = List.map (V ∘ fun x => if h1_v = x then h1_t else x) h1_xs
a1 : v' ∈ hd.q.freeVarSet
⊢ v' ∈ hd.args |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/NV/Sub/Var/One/Ind/Sub.lean | FOL.NV.Sub.Var.One.Ind.substitution_theorem | [298, 1] | [424, 17] | simp only [← List.mem_toFinset] | case h1.h1
D : Type
I : Interpretation D
v t : VarName
F F' : Formula
h1_X : DefName
h1_xs : List VarName
h1_v h1_t : VarName
V : VarAssignment D
hd : Definition
tl : List Definition
ih :
Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs))
c1 : h1_X = hd.name ∧ h1_xs.length = hd.args.length
c2 : h1_X = hd.name ∧ (List.map (fun x => if h1_v = x then h1_t else x) h1_xs).length = hd.args.length
v' : VarName
s1 : List.map (Function.updateITE V h1_v (V h1_t)) h1_xs = List.map (V ∘ fun x => if h1_v = x then h1_t else x) h1_xs
a1 : v' ∈ hd.q.freeVarSet
⊢ v' ∈ hd.args | case h1.h1
D : Type
I : Interpretation D
v t : VarName
F F' : Formula
h1_X : DefName
h1_xs : List VarName
h1_v h1_t : VarName
V : VarAssignment D
hd : Definition
tl : List Definition
ih :
Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs))
c1 : h1_X = hd.name ∧ h1_xs.length = hd.args.length
c2 : h1_X = hd.name ∧ (List.map (fun x => if h1_v = x then h1_t else x) h1_xs).length = hd.args.length
v' : VarName
s1 : List.map (Function.updateITE V h1_v (V h1_t)) h1_xs = List.map (V ∘ fun x => if h1_v = x then h1_t else x) h1_xs
a1 : v' ∈ hd.q.freeVarSet
⊢ v' ∈ hd.args.toFinset |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/NV/Sub/Var/One/Ind/Sub.lean | FOL.NV.Sub.Var.One.Ind.substitution_theorem | [298, 1] | [424, 17] | apply Finset.mem_of_subset hd.h1 a1 | case h1.h1
D : Type
I : Interpretation D
v t : VarName
F F' : Formula
h1_X : DefName
h1_xs : List VarName
h1_v h1_t : VarName
V : VarAssignment D
hd : Definition
tl : List Definition
ih :
Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs))
c1 : h1_X = hd.name ∧ h1_xs.length = hd.args.length
c2 : h1_X = hd.name ∧ (List.map (fun x => if h1_v = x then h1_t else x) h1_xs).length = hd.args.length
v' : VarName
s1 : List.map (Function.updateITE V h1_v (V h1_t)) h1_xs = List.map (V ∘ fun x => if h1_v = x then h1_t else x) h1_xs
a1 : v' ∈ hd.q.freeVarSet
⊢ v' ∈ hd.args.toFinset | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/NV/Sub/Var/One/Ind/Sub.lean | FOL.NV.Sub.Var.One.Ind.substitution_theorem | [298, 1] | [424, 17] | simp | case h1.h2
D : Type
I : Interpretation D
v t : VarName
F F' : Formula
h1_X : DefName
h1_xs : List VarName
h1_v h1_t : VarName
V : VarAssignment D
hd : Definition
tl : List Definition
ih :
Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs))
c1 : h1_X = hd.name ∧ h1_xs.length = hd.args.length
c2 : h1_X = hd.name ∧ (List.map (fun x => if h1_v = x then h1_t else x) h1_xs).length = hd.args.length
v' : VarName
a1 : isFreeIn v' hd.q
s1 : List.map (Function.updateITE V h1_v (V h1_t)) h1_xs = List.map (V ∘ fun x => if h1_v = x then h1_t else x) h1_xs
⊢ hd.args.length = (List.map (V ∘ fun x => if h1_v = x then h1_t else x) h1_xs).length | case h1.h2
D : Type
I : Interpretation D
v t : VarName
F F' : Formula
h1_X : DefName
h1_xs : List VarName
h1_v h1_t : VarName
V : VarAssignment D
hd : Definition
tl : List Definition
ih :
Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs))
c1 : h1_X = hd.name ∧ h1_xs.length = hd.args.length
c2 : h1_X = hd.name ∧ (List.map (fun x => if h1_v = x then h1_t else x) h1_xs).length = hd.args.length
v' : VarName
a1 : isFreeIn v' hd.q
s1 : List.map (Function.updateITE V h1_v (V h1_t)) h1_xs = List.map (V ∘ fun x => if h1_v = x then h1_t else x) h1_xs
⊢ hd.args.length = h1_xs.length |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/NV/Sub/Var/One/Ind/Sub.lean | FOL.NV.Sub.Var.One.Ind.substitution_theorem | [298, 1] | [424, 17] | tauto | case h1.h2
D : Type
I : Interpretation D
v t : VarName
F F' : Formula
h1_X : DefName
h1_xs : List VarName
h1_v h1_t : VarName
V : VarAssignment D
hd : Definition
tl : List Definition
ih :
Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs))
c1 : h1_X = hd.name ∧ h1_xs.length = hd.args.length
c2 : h1_X = hd.name ∧ (List.map (fun x => if h1_v = x then h1_t else x) h1_xs).length = hd.args.length
v' : VarName
a1 : isFreeIn v' hd.q
s1 : List.map (Function.updateITE V h1_v (V h1_t)) h1_xs = List.map (V ∘ fun x => if h1_v = x then h1_t else x) h1_xs
⊢ hd.args.length = h1_xs.length | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/NV/Sub/Var/One/Ind/Sub.lean | FOL.NV.Sub.Var.One.Ind.substitution_theorem | [298, 1] | [424, 17] | simp only [List.length_map] at c2 | D : Type
I : Interpretation D
v t : VarName
F F' : Formula
h1_X : DefName
h1_xs : List VarName
h1_v h1_t : VarName
V : VarAssignment D
hd : Definition
tl : List Definition
ih :
Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs))
c1 : h1_X = hd.name ∧ h1_xs.length = hd.args.length
c2 : ¬(h1_X = hd.name ∧ (List.map (fun x => if h1_v = x then h1_t else x) h1_xs).length = hd.args.length)
⊢ Holds D I
(Function.updateListITE (Function.updateITE V h1_v (V h1_t)) hd.args
(List.map (Function.updateITE V h1_v (V h1_t)) h1_xs))
tl hd.q ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs)) | D : Type
I : Interpretation D
v t : VarName
F F' : Formula
h1_X : DefName
h1_xs : List VarName
h1_v h1_t : VarName
V : VarAssignment D
hd : Definition
tl : List Definition
ih :
Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs))
c1 : h1_X = hd.name ∧ h1_xs.length = hd.args.length
c2 : ¬(h1_X = hd.name ∧ h1_xs.length = hd.args.length)
⊢ Holds D I
(Function.updateListITE (Function.updateITE V h1_v (V h1_t)) hd.args
(List.map (Function.updateITE V h1_v (V h1_t)) h1_xs))
tl hd.q ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs)) |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/NV/Sub/Var/One/Ind/Sub.lean | FOL.NV.Sub.Var.One.Ind.substitution_theorem | [298, 1] | [424, 17] | contradiction | D : Type
I : Interpretation D
v t : VarName
F F' : Formula
h1_X : DefName
h1_xs : List VarName
h1_v h1_t : VarName
V : VarAssignment D
hd : Definition
tl : List Definition
ih :
Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs))
c1 : h1_X = hd.name ∧ h1_xs.length = hd.args.length
c2 : ¬(h1_X = hd.name ∧ h1_xs.length = hd.args.length)
⊢ Holds D I
(Function.updateListITE (Function.updateITE V h1_v (V h1_t)) hd.args
(List.map (Function.updateITE V h1_v (V h1_t)) h1_xs))
tl hd.q ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs)) | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/NV/Sub/Var/One/Ind/Sub.lean | FOL.NV.Sub.Var.One.Ind.substitution_theorem | [298, 1] | [424, 17] | simp at c2 | D : Type
I : Interpretation D
v t : VarName
F F' : Formula
h1_X : DefName
h1_xs : List VarName
h1_v h1_t : VarName
V : VarAssignment D
hd : Definition
tl : List Definition
ih :
Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs))
c1 : ¬(h1_X = hd.name ∧ h1_xs.length = hd.args.length)
c2 : h1_X = hd.name ∧ (List.map (fun x => if h1_v = x then h1_t else x) h1_xs).length = hd.args.length
⊢ Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I (Function.updateListITE V hd.args (List.map V (List.map (fun x => if h1_v = x then h1_t else x) h1_xs)))
tl hd.q | D : Type
I : Interpretation D
v t : VarName
F F' : Formula
h1_X : DefName
h1_xs : List VarName
h1_v h1_t : VarName
V : VarAssignment D
hd : Definition
tl : List Definition
ih :
Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs))
c1 : ¬(h1_X = hd.name ∧ h1_xs.length = hd.args.length)
c2 : h1_X = hd.name ∧ h1_xs.length = hd.args.length
⊢ Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I (Function.updateListITE V hd.args (List.map V (List.map (fun x => if h1_v = x then h1_t else x) h1_xs)))
tl hd.q |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/NV/Sub/Var/One/Ind/Sub.lean | FOL.NV.Sub.Var.One.Ind.substitution_theorem | [298, 1] | [424, 17] | contradiction | D : Type
I : Interpretation D
v t : VarName
F F' : Formula
h1_X : DefName
h1_xs : List VarName
h1_v h1_t : VarName
V : VarAssignment D
hd : Definition
tl : List Definition
ih :
Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs))
c1 : ¬(h1_X = hd.name ∧ h1_xs.length = hd.args.length)
c2 : h1_X = hd.name ∧ h1_xs.length = hd.args.length
⊢ Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I (Function.updateListITE V hd.args (List.map V (List.map (fun x => if h1_v = x then h1_t else x) h1_xs)))
tl hd.q | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/NV/Sub/Var/One/Ind/Sub.lean | FOL.NV.Sub.Var.One.Ind.substitution_theorem | [298, 1] | [424, 17] | exact ih | D : Type
I : Interpretation D
v t : VarName
F F' : Formula
h1_X : DefName
h1_xs : List VarName
h1_v h1_t : VarName
V : VarAssignment D
hd : Definition
tl : List Definition
ih :
Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs))
c1 : ¬(h1_X = hd.name ∧ h1_xs.length = hd.args.length)
c2 : ¬(h1_X = hd.name ∧ (List.map (fun x => if h1_v = x then h1_t else x) h1_xs).length = hd.args.length)
⊢ Holds D I (Function.updateITE V h1_v (V h1_t)) tl (def_ h1_X h1_xs) ↔
Holds D I V tl (def_ h1_X (List.map (fun x => if h1_v = x then h1_t else x) h1_xs)) | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/NV/Sub/Var/One/Ind/Sub.lean | FOL.NV.Sub.Var.One.Ind.substitution_is_valid | [427, 1] | [439, 11] | simp only [IsValid] at h2 | v t : VarName
F F' : Formula
h1 : IsSub F v t F'
h2 : F.IsValid
⊢ F'.IsValid | v t : VarName
F F' : Formula
h1 : IsSub F v t F'
h2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), Holds D I V E F
⊢ F'.IsValid |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/NV/Sub/Var/One/Ind/Sub.lean | FOL.NV.Sub.Var.One.Ind.substitution_is_valid | [427, 1] | [439, 11] | simp only [IsValid] | v t : VarName
F F' : Formula
h1 : IsSub F v t F'
h2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), Holds D I V E F
⊢ F'.IsValid | v t : VarName
F F' : Formula
h1 : IsSub F v t F'
h2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), Holds D I V E F
⊢ ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), Holds D I V E F' |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/NV/Sub/Var/One/Ind/Sub.lean | FOL.NV.Sub.Var.One.Ind.substitution_is_valid | [427, 1] | [439, 11] | intro D I V E | v t : VarName
F F' : Formula
h1 : IsSub F v t F'
h2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), Holds D I V E F
⊢ ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), Holds D I V E F' | v t : VarName
F F' : Formula
h1 : IsSub F v t F'
h2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), Holds D I V E F
D : Type
I : Interpretation D
V : VarAssignment D
E : Env
⊢ Holds D I V E F' |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/NV/Sub/Var/One/Ind/Sub.lean | FOL.NV.Sub.Var.One.Ind.substitution_is_valid | [427, 1] | [439, 11] | simp only [← substitution_theorem D I V E v t F F' h1] | v t : VarName
F F' : Formula
h1 : IsSub F v t F'
h2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), Holds D I V E F
D : Type
I : Interpretation D
V : VarAssignment D
E : Env
⊢ Holds D I V E F' | v t : VarName
F F' : Formula
h1 : IsSub F v t F'
h2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), Holds D I V E F
D : Type
I : Interpretation D
V : VarAssignment D
E : Env
⊢ Holds D I (Function.updateITE V v (V t)) E F |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/NV/Sub/Var/One/Ind/Sub.lean | FOL.NV.Sub.Var.One.Ind.substitution_is_valid | [427, 1] | [439, 11] | apply h2 | v t : VarName
F F' : Formula
h1 : IsSub F v t F'
h2 : ∀ (D : Type) (I : Interpretation D) (V : VarAssignment D) (E : Env), Holds D I V E F
D : Type
I : Interpretation D
V : VarAssignment D
E : Env
⊢ Holds D I (Function.updateITE V v (V t)) E F | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | induction e | α : Type
e : RegExp α
⊢ e.is_nullable ↔ [] ∈ RegExp.languageOf α e | case char
α : Type
a✝ : α
⊢ (RegExp.char a✝).is_nullable ↔ [] ∈ RegExp.languageOf α (RegExp.char a✝)
case epsilon
α : Type
⊢ RegExp.epsilon.is_nullable ↔ [] ∈ RegExp.languageOf α RegExp.epsilon
case zero
α : Type
⊢ RegExp.zero.is_nullable ↔ [] ∈ RegExp.languageOf α RegExp.zero
case union
α : Type
a✝¹ a✝ : RegExp α
a_ih✝¹ : a✝¹.is_nullable ↔ [] ∈ RegExp.languageOf α a✝¹
a_ih✝ : a✝.is_nullable ↔ [] ∈ RegExp.languageOf α a✝
⊢ (a✝¹.union a✝).is_nullable ↔ [] ∈ RegExp.languageOf α (a✝¹.union a✝)
case concat
α : Type
a✝¹ a✝ : RegExp α
a_ih✝¹ : a✝¹.is_nullable ↔ [] ∈ RegExp.languageOf α a✝¹
a_ih✝ : a✝.is_nullable ↔ [] ∈ RegExp.languageOf α a✝
⊢ (a✝¹.concat a✝).is_nullable ↔ [] ∈ RegExp.languageOf α (a✝¹.concat a✝)
case closure
α : Type
a✝ : RegExp α
a_ih✝ : a✝.is_nullable ↔ [] ∈ RegExp.languageOf α a✝
⊢ a✝.closure.is_nullable ↔ [] ∈ RegExp.languageOf α a✝.closure |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | case char a =>
simp only [RegExp.languageOf]
simp only [RegExp.is_nullable]
simp | α : Type
a : α
⊢ (RegExp.char a).is_nullable ↔ [] ∈ RegExp.languageOf α (RegExp.char a) | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | case epsilon =>
simp only [RegExp.languageOf]
simp only [RegExp.is_nullable]
simp | α : Type
⊢ RegExp.epsilon.is_nullable ↔ [] ∈ RegExp.languageOf α RegExp.epsilon | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | case zero =>
simp only [RegExp.languageOf]
simp only [RegExp.is_nullable]
simp | α : Type
⊢ RegExp.zero.is_nullable ↔ [] ∈ RegExp.languageOf α RegExp.zero | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | case union r s r_ih s_ih =>
simp only [RegExp.languageOf]
simp only [RegExp.is_nullable]
simp
simp only [r_ih]
simp only [s_ih] | α : Type
r s : RegExp α
r_ih : r.is_nullable ↔ [] ∈ RegExp.languageOf α r
s_ih : s.is_nullable ↔ [] ∈ RegExp.languageOf α s
⊢ (r.union s).is_nullable ↔ [] ∈ RegExp.languageOf α (r.union s) | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | case concat r s r_ih s_ih =>
simp only [RegExp.languageOf]
simp only [RegExp.is_nullable]
simp
simp only [r_ih]
simp only [s_ih] | α : Type
r s : RegExp α
r_ih : r.is_nullable ↔ [] ∈ RegExp.languageOf α r
s_ih : s.is_nullable ↔ [] ∈ RegExp.languageOf α s
⊢ (r.concat s).is_nullable ↔ [] ∈ RegExp.languageOf α (r.concat s) | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | case closure e _ =>
simp only [equiv_language_of_closure]
simp only [RegExp.languageOf]
simp only [RegExp.is_nullable]
simp | α : Type
e : RegExp α
a_ih✝ : e.is_nullable ↔ [] ∈ RegExp.languageOf α e
⊢ e.closure.is_nullable ↔ [] ∈ RegExp.languageOf α e.closure | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp only [RegExp.languageOf] | α : Type
a : α
⊢ (RegExp.char a).is_nullable ↔ [] ∈ RegExp.languageOf α (RegExp.char a) | α : Type
a : α
⊢ (RegExp.char a).is_nullable ↔ [] ∈ {[a]} |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp only [RegExp.is_nullable] | α : Type
a : α
⊢ (RegExp.char a).is_nullable ↔ [] ∈ {[a]} | α : Type
a : α
⊢ False ↔ [] ∈ {[a]} |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp | α : Type
a : α
⊢ False ↔ [] ∈ {[a]} | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp only [RegExp.languageOf] | α : Type
⊢ RegExp.epsilon.is_nullable ↔ [] ∈ RegExp.languageOf α RegExp.epsilon | α : Type
⊢ RegExp.epsilon.is_nullable ↔ [] ∈ {[]} |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp only [RegExp.is_nullable] | α : Type
⊢ RegExp.epsilon.is_nullable ↔ [] ∈ {[]} | α : Type
⊢ True ↔ [] ∈ {[]} |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp | α : Type
⊢ True ↔ [] ∈ {[]} | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp only [RegExp.languageOf] | α : Type
⊢ RegExp.zero.is_nullable ↔ [] ∈ RegExp.languageOf α RegExp.zero | α : Type
⊢ RegExp.zero.is_nullable ↔ [] ∈ ∅ |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp only [RegExp.is_nullable] | α : Type
⊢ RegExp.zero.is_nullable ↔ [] ∈ ∅ | α : Type
⊢ False ↔ [] ∈ ∅ |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp | α : Type
⊢ False ↔ [] ∈ ∅ | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp only [RegExp.languageOf] | α : Type
r s : RegExp α
r_ih : r.is_nullable ↔ [] ∈ RegExp.languageOf α r
s_ih : s.is_nullable ↔ [] ∈ RegExp.languageOf α s
⊢ (r.union s).is_nullable ↔ [] ∈ RegExp.languageOf α (r.union s) | α : Type
r s : RegExp α
r_ih : r.is_nullable ↔ [] ∈ RegExp.languageOf α r
s_ih : s.is_nullable ↔ [] ∈ RegExp.languageOf α s
⊢ (r.union s).is_nullable ↔ [] ∈ RegExp.languageOf α r ∪ RegExp.languageOf α s |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp only [RegExp.is_nullable] | α : Type
r s : RegExp α
r_ih : r.is_nullable ↔ [] ∈ RegExp.languageOf α r
s_ih : s.is_nullable ↔ [] ∈ RegExp.languageOf α s
⊢ (r.union s).is_nullable ↔ [] ∈ RegExp.languageOf α r ∪ RegExp.languageOf α s | α : Type
r s : RegExp α
r_ih : r.is_nullable ↔ [] ∈ RegExp.languageOf α r
s_ih : s.is_nullable ↔ [] ∈ RegExp.languageOf α s
⊢ r.is_nullable ∨ s.is_nullable ↔ [] ∈ RegExp.languageOf α r ∪ RegExp.languageOf α s |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp | α : Type
r s : RegExp α
r_ih : r.is_nullable ↔ [] ∈ RegExp.languageOf α r
s_ih : s.is_nullable ↔ [] ∈ RegExp.languageOf α s
⊢ r.is_nullable ∨ s.is_nullable ↔ [] ∈ RegExp.languageOf α r ∪ RegExp.languageOf α s | α : Type
r s : RegExp α
r_ih : r.is_nullable ↔ [] ∈ RegExp.languageOf α r
s_ih : s.is_nullable ↔ [] ∈ RegExp.languageOf α s
⊢ r.is_nullable ∨ s.is_nullable ↔ [] ∈ RegExp.languageOf α r ∨ [] ∈ RegExp.languageOf α s |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp only [r_ih] | α : Type
r s : RegExp α
r_ih : r.is_nullable ↔ [] ∈ RegExp.languageOf α r
s_ih : s.is_nullable ↔ [] ∈ RegExp.languageOf α s
⊢ r.is_nullable ∨ s.is_nullable ↔ [] ∈ RegExp.languageOf α r ∨ [] ∈ RegExp.languageOf α s | α : Type
r s : RegExp α
r_ih : r.is_nullable ↔ [] ∈ RegExp.languageOf α r
s_ih : s.is_nullable ↔ [] ∈ RegExp.languageOf α s
⊢ [] ∈ RegExp.languageOf α r ∨ s.is_nullable ↔ [] ∈ RegExp.languageOf α r ∨ [] ∈ RegExp.languageOf α s |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp only [s_ih] | α : Type
r s : RegExp α
r_ih : r.is_nullable ↔ [] ∈ RegExp.languageOf α r
s_ih : s.is_nullable ↔ [] ∈ RegExp.languageOf α s
⊢ [] ∈ RegExp.languageOf α r ∨ s.is_nullable ↔ [] ∈ RegExp.languageOf α r ∨ [] ∈ RegExp.languageOf α s | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp only [RegExp.languageOf] | α : Type
r s : RegExp α
r_ih : r.is_nullable ↔ [] ∈ RegExp.languageOf α r
s_ih : s.is_nullable ↔ [] ∈ RegExp.languageOf α s
⊢ (r.concat s).is_nullable ↔ [] ∈ RegExp.languageOf α (r.concat s) | α : Type
r s : RegExp α
r_ih : r.is_nullable ↔ [] ∈ RegExp.languageOf α r
s_ih : s.is_nullable ↔ [] ∈ RegExp.languageOf α s
⊢ (r.concat s).is_nullable ↔ [] ∈ {x | ∃ r_1 ∈ RegExp.languageOf α r, ∃ s_1 ∈ RegExp.languageOf α s, r_1 ++ s_1 = x} |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp only [RegExp.is_nullable] | α : Type
r s : RegExp α
r_ih : r.is_nullable ↔ [] ∈ RegExp.languageOf α r
s_ih : s.is_nullable ↔ [] ∈ RegExp.languageOf α s
⊢ (r.concat s).is_nullable ↔ [] ∈ {x | ∃ r_1 ∈ RegExp.languageOf α r, ∃ s_1 ∈ RegExp.languageOf α s, r_1 ++ s_1 = x} | α : Type
r s : RegExp α
r_ih : r.is_nullable ↔ [] ∈ RegExp.languageOf α r
s_ih : s.is_nullable ↔ [] ∈ RegExp.languageOf α s
⊢ r.is_nullable ∧ s.is_nullable ↔
[] ∈ {x | ∃ r_1 ∈ RegExp.languageOf α r, ∃ s_1 ∈ RegExp.languageOf α s, r_1 ++ s_1 = x} |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp | α : Type
r s : RegExp α
r_ih : r.is_nullable ↔ [] ∈ RegExp.languageOf α r
s_ih : s.is_nullable ↔ [] ∈ RegExp.languageOf α s
⊢ r.is_nullable ∧ s.is_nullable ↔
[] ∈ {x | ∃ r_1 ∈ RegExp.languageOf α r, ∃ s_1 ∈ RegExp.languageOf α s, r_1 ++ s_1 = x} | α : Type
r s : RegExp α
r_ih : r.is_nullable ↔ [] ∈ RegExp.languageOf α r
s_ih : s.is_nullable ↔ [] ∈ RegExp.languageOf α s
⊢ r.is_nullable ∧ s.is_nullable ↔ [] ∈ RegExp.languageOf α r ∧ [] ∈ RegExp.languageOf α s |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp only [r_ih] | α : Type
r s : RegExp α
r_ih : r.is_nullable ↔ [] ∈ RegExp.languageOf α r
s_ih : s.is_nullable ↔ [] ∈ RegExp.languageOf α s
⊢ r.is_nullable ∧ s.is_nullable ↔ [] ∈ RegExp.languageOf α r ∧ [] ∈ RegExp.languageOf α s | α : Type
r s : RegExp α
r_ih : r.is_nullable ↔ [] ∈ RegExp.languageOf α r
s_ih : s.is_nullable ↔ [] ∈ RegExp.languageOf α s
⊢ [] ∈ RegExp.languageOf α r ∧ s.is_nullable ↔ [] ∈ RegExp.languageOf α r ∧ [] ∈ RegExp.languageOf α s |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp only [s_ih] | α : Type
r s : RegExp α
r_ih : r.is_nullable ↔ [] ∈ RegExp.languageOf α r
s_ih : s.is_nullable ↔ [] ∈ RegExp.languageOf α s
⊢ [] ∈ RegExp.languageOf α r ∧ s.is_nullable ↔ [] ∈ RegExp.languageOf α r ∧ [] ∈ RegExp.languageOf α s | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp only [equiv_language_of_closure] | α : Type
e : RegExp α
a_ih✝ : e.is_nullable ↔ [] ∈ RegExp.languageOf α e
⊢ e.closure.is_nullable ↔ [] ∈ RegExp.languageOf α e.closure | α : Type
e : RegExp α
a_ih✝ : e.is_nullable ↔ [] ∈ RegExp.languageOf α e
⊢ e.closure.is_nullable ↔ [] ∈ RegExp.languageOf α (RegExp.epsilon.union (e.concat e.closure)) |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp only [RegExp.languageOf] | α : Type
e : RegExp α
a_ih✝ : e.is_nullable ↔ [] ∈ RegExp.languageOf α e
⊢ e.closure.is_nullable ↔ [] ∈ RegExp.languageOf α (RegExp.epsilon.union (e.concat e.closure)) | α : Type
e : RegExp α
a_ih✝ : e.is_nullable ↔ [] ∈ RegExp.languageOf α e
⊢ e.closure.is_nullable ↔
[] ∈
{[]} ∪
{x |
∃ r ∈ RegExp.languageOf α e,
∃ s ∈ {l | ∃ rs, (∀ r ∈ rs, r ∈ RegExp.languageOf α e) ∧ rs.join = l}, r ++ s = x} |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp only [RegExp.is_nullable] | α : Type
e : RegExp α
a_ih✝ : e.is_nullable ↔ [] ∈ RegExp.languageOf α e
⊢ e.closure.is_nullable ↔
[] ∈
{[]} ∪
{x |
∃ r ∈ RegExp.languageOf α e,
∃ s ∈ {l | ∃ rs, (∀ r ∈ rs, r ∈ RegExp.languageOf α e) ∧ rs.join = l}, r ++ s = x} | α : Type
e : RegExp α
a_ih✝ : e.is_nullable ↔ [] ∈ RegExp.languageOf α e
⊢ True ↔
[] ∈
{[]} ∪
{x |
∃ r ∈ RegExp.languageOf α e,
∃ s ∈ {l | ∃ rs, (∀ r ∈ rs, r ∈ RegExp.languageOf α e) ∧ rs.join = l}, r ++ s = x} |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | is_nullable_def | [73, 1] | [107, 11] | simp | α : Type
e : RegExp α
a_ih✝ : e.is_nullable ↔ [] ∈ RegExp.languageOf α e
⊢ True ↔
[] ∈
{[]} ∪
{x |
∃ r ∈ RegExp.languageOf α e,
∃ s ∈ {l | ∃ rs, (∀ r ∈ rs, r ∈ RegExp.languageOf α e) ∧ rs.join = l}, r ++ s = x} | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | induction e | α : Type
e : RegExp α
⊢ RegExp.languageOf α e.delta =
if e.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero | case char
α : Type
a✝ : α
⊢ RegExp.languageOf α (RegExp.char a✝).delta =
if (RegExp.char a✝).is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
case epsilon
α : Type
⊢ RegExp.languageOf α RegExp.epsilon.delta =
if RegExp.epsilon.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
case zero
α : Type
⊢ RegExp.languageOf α RegExp.zero.delta =
if RegExp.zero.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
case union
α : Type
a✝¹ a✝ : RegExp α
a_ih✝¹ :
RegExp.languageOf α a✝¹.delta =
if a✝¹.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
a_ih✝ :
RegExp.languageOf α a✝.delta =
if a✝.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
⊢ RegExp.languageOf α (a✝¹.union a✝).delta =
if (a✝¹.union a✝).is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
case concat
α : Type
a✝¹ a✝ : RegExp α
a_ih✝¹ :
RegExp.languageOf α a✝¹.delta =
if a✝¹.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
a_ih✝ :
RegExp.languageOf α a✝.delta =
if a✝.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
⊢ RegExp.languageOf α (a✝¹.concat a✝).delta =
if (a✝¹.concat a✝).is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
case closure
α : Type
a✝ : RegExp α
a_ih✝ :
RegExp.languageOf α a✝.delta =
if a✝.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
⊢ RegExp.languageOf α a✝.closure.delta =
if a✝.closure.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | case char a =>
simp only [RegExp.is_nullable]
simp only [RegExp.languageOf]
simp | α : Type
a : α
⊢ RegExp.languageOf α (RegExp.char a).delta =
if (RegExp.char a).is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | case epsilon =>
simp only [RegExp.is_nullable]
simp only [RegExp.languageOf]
simp | α : Type
⊢ RegExp.languageOf α RegExp.epsilon.delta =
if RegExp.epsilon.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | case zero =>
simp only [RegExp.is_nullable]
simp only [RegExp.languageOf]
simp | α : Type
⊢ RegExp.languageOf α RegExp.zero.delta =
if RegExp.zero.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | case union r s r_ih s_ih =>
simp only [RegExp.languageOf] at r_ih
simp only [RegExp.languageOf] at s_ih
simp only [RegExp.languageOf]
simp only [r_ih]
simp only [s_ih]
simp only [RegExp.is_nullable]
ext cs
simp
tauto | α : Type
r s : RegExp α
r_ih :
RegExp.languageOf α r.delta =
if r.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
s_ih :
RegExp.languageOf α s.delta =
if s.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
⊢ RegExp.languageOf α (r.union s).delta =
if (r.union s).is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | case closure e _ =>
simp only [RegExp.languageOf]
simp only [RegExp.is_nullable]
simp | α : Type
e : RegExp α
a_ih✝ :
RegExp.languageOf α e.delta =
if e.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
⊢ RegExp.languageOf α e.closure.delta =
if e.closure.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [RegExp.is_nullable] | α : Type
a : α
⊢ RegExp.languageOf α (RegExp.char a).delta =
if (RegExp.char a).is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero | α : Type
a : α
⊢ RegExp.languageOf α (RegExp.char a).delta =
if False then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [RegExp.languageOf] | α : Type
a : α
⊢ RegExp.languageOf α (RegExp.char a).delta =
if False then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero | α : Type
a : α
⊢ ∅ = if False then {[]} else ∅ |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp | α : Type
a : α
⊢ ∅ = if False then {[]} else ∅ | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [RegExp.is_nullable] | α : Type
⊢ RegExp.languageOf α RegExp.epsilon.delta =
if RegExp.epsilon.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero | α : Type
⊢ RegExp.languageOf α RegExp.epsilon.delta =
if True then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [RegExp.languageOf] | α : Type
⊢ RegExp.languageOf α RegExp.epsilon.delta =
if True then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero | α : Type
⊢ {[]} = if True then {[]} else ∅ |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp | α : Type
⊢ {[]} = if True then {[]} else ∅ | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [RegExp.is_nullable] | α : Type
⊢ RegExp.languageOf α RegExp.zero.delta =
if RegExp.zero.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero | α : Type
⊢ RegExp.languageOf α RegExp.zero.delta =
if False then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [RegExp.languageOf] | α : Type
⊢ RegExp.languageOf α RegExp.zero.delta =
if False then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero | α : Type
⊢ ∅ = if False then {[]} else ∅ |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp | α : Type
⊢ ∅ = if False then {[]} else ∅ | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [RegExp.languageOf] at r_ih | α : Type
r s : RegExp α
r_ih :
RegExp.languageOf α r.delta =
if r.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
s_ih :
RegExp.languageOf α s.delta =
if s.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
⊢ RegExp.languageOf α (r.union s).delta =
if (r.union s).is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero | α : Type
r s : RegExp α
s_ih :
RegExp.languageOf α s.delta =
if s.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
⊢ RegExp.languageOf α (r.union s).delta =
if (r.union s).is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [RegExp.languageOf] at s_ih | α : Type
r s : RegExp α
s_ih :
RegExp.languageOf α s.delta =
if s.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
⊢ RegExp.languageOf α (r.union s).delta =
if (r.union s).is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
⊢ RegExp.languageOf α (r.union s).delta =
if (r.union s).is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [RegExp.languageOf] | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
⊢ RegExp.languageOf α (r.union s).delta =
if (r.union s).is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
⊢ RegExp.languageOf α r.delta ∪ RegExp.languageOf α s.delta = if (r.union s).is_nullable then {[]} else ∅ |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [r_ih] | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
⊢ RegExp.languageOf α r.delta ∪ RegExp.languageOf α s.delta = if (r.union s).is_nullable then {[]} else ∅ | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
⊢ (if r.is_nullable then {[]} else ∅) ∪ RegExp.languageOf α s.delta = if (r.union s).is_nullable then {[]} else ∅ |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [s_ih] | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
⊢ (if r.is_nullable then {[]} else ∅) ∪ RegExp.languageOf α s.delta = if (r.union s).is_nullable then {[]} else ∅ | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
⊢ ((if r.is_nullable then {[]} else ∅) ∪ if s.is_nullable then {[]} else ∅) =
if (r.union s).is_nullable then {[]} else ∅ |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [RegExp.is_nullable] | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
⊢ ((if r.is_nullable then {[]} else ∅) ∪ if s.is_nullable then {[]} else ∅) =
if (r.union s).is_nullable then {[]} else ∅ | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
⊢ ((if r.is_nullable then {[]} else ∅) ∪ if s.is_nullable then {[]} else ∅) =
if r.is_nullable ∨ s.is_nullable then {[]} else ∅ |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | ext cs | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
⊢ ((if r.is_nullable then {[]} else ∅) ∪ if s.is_nullable then {[]} else ∅) =
if r.is_nullable ∨ s.is_nullable then {[]} else ∅ | case h
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs : List α
⊢ (cs ∈ (if r.is_nullable then {[]} else ∅) ∪ if s.is_nullable then {[]} else ∅) ↔
cs ∈ if r.is_nullable ∨ s.is_nullable then {[]} else ∅ |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp | case h
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs : List α
⊢ (cs ∈ (if r.is_nullable then {[]} else ∅) ∪ if s.is_nullable then {[]} else ∅) ↔
cs ∈ if r.is_nullable ∨ s.is_nullable then {[]} else ∅ | case h
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs : List α
⊢ r.is_nullable ∧ cs = [] ∨ s.is_nullable ∧ cs = [] ↔ (r.is_nullable ∨ s.is_nullable) ∧ cs = [] |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | tauto | case h
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs : List α
⊢ r.is_nullable ∧ cs = [] ∨ s.is_nullable ∧ cs = [] ↔ (r.is_nullable ∨ s.is_nullable) ∧ cs = [] | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [RegExp.languageOf] at r_ih | α : Type
r s : RegExp α
r_ih :
RegExp.languageOf α r.delta =
if r.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
s_ih :
RegExp.languageOf α s.delta =
if s.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
⊢ RegExp.languageOf α (r.concat s).delta =
if (r.concat s).is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero | α : Type
r s : RegExp α
s_ih :
RegExp.languageOf α s.delta =
if s.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
⊢ RegExp.languageOf α (r.concat s).delta =
if (r.concat s).is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [RegExp.languageOf] at s_ih | α : Type
r s : RegExp α
s_ih :
RegExp.languageOf α s.delta =
if s.is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
⊢ RegExp.languageOf α (r.concat s).delta =
if (r.concat s).is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
⊢ RegExp.languageOf α (r.concat s).delta =
if (r.concat s).is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [RegExp.languageOf] | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
⊢ RegExp.languageOf α (r.concat s).delta =
if (r.concat s).is_nullable then RegExp.languageOf α RegExp.epsilon else RegExp.languageOf α RegExp.zero | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
⊢ {x | ∃ r_1 ∈ RegExp.languageOf α r.delta, ∃ s_1 ∈ RegExp.languageOf α s.delta, r_1 ++ s_1 = x} =
if (r.concat s).is_nullable then {[]} else ∅ |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [r_ih] | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
⊢ {x | ∃ r_1 ∈ RegExp.languageOf α r.delta, ∃ s_1 ∈ RegExp.languageOf α s.delta, r_1 ++ s_1 = x} =
if (r.concat s).is_nullable then {[]} else ∅ | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
⊢ {x | ∃ r_1 ∈ if r.is_nullable then {[]} else ∅, ∃ s_1 ∈ RegExp.languageOf α s.delta, r_1 ++ s_1 = x} =
if (r.concat s).is_nullable then {[]} else ∅ |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [s_ih] | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
⊢ {x | ∃ r_1 ∈ if r.is_nullable then {[]} else ∅, ∃ s_1 ∈ RegExp.languageOf α s.delta, r_1 ++ s_1 = x} =
if (r.concat s).is_nullable then {[]} else ∅ | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
⊢ {x | ∃ r_1 ∈ if r.is_nullable then {[]} else ∅, ∃ s_1 ∈ if s.is_nullable then {[]} else ∅, r_1 ++ s_1 = x} =
if (r.concat s).is_nullable then {[]} else ∅ |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [RegExp.is_nullable] | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
⊢ {x | ∃ r_1 ∈ if r.is_nullable then {[]} else ∅, ∃ s_1 ∈ if s.is_nullable then {[]} else ∅, r_1 ++ s_1 = x} =
if (r.concat s).is_nullable then {[]} else ∅ | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
⊢ {x | ∃ r_1 ∈ if r.is_nullable then {[]} else ∅, ∃ s_1 ∈ if s.is_nullable then {[]} else ∅, r_1 ++ s_1 = x} =
if r.is_nullable ∧ s.is_nullable then {[]} else ∅ |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | ext cs | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
⊢ {x | ∃ r_1 ∈ if r.is_nullable then {[]} else ∅, ∃ s_1 ∈ if s.is_nullable then {[]} else ∅, r_1 ++ s_1 = x} =
if r.is_nullable ∧ s.is_nullable then {[]} else ∅ | case h
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs : List α
⊢ cs ∈ {x | ∃ r_1 ∈ if r.is_nullable then {[]} else ∅, ∃ s_1 ∈ if s.is_nullable then {[]} else ∅, r_1 ++ s_1 = x} ↔
cs ∈ if r.is_nullable ∧ s.is_nullable then {[]} else ∅ |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp | case h
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs : List α
⊢ cs ∈ {x | ∃ r_1 ∈ if r.is_nullable then {[]} else ∅, ∃ s_1 ∈ if s.is_nullable then {[]} else ∅, r_1 ++ s_1 = x} ↔
cs ∈ if r.is_nullable ∧ s.is_nullable then {[]} else ∅ | case h
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs : List α
⊢ (∃ r_1, (r.is_nullable ∧ r_1 = []) ∧ ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ r_1 ++ s_1 = cs) ↔
(r.is_nullable ∧ s.is_nullable) ∧ cs = [] |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | constructor | case h
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs : List α
⊢ (∃ r_1, (r.is_nullable ∧ r_1 = []) ∧ ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ r_1 ++ s_1 = cs) ↔
(r.is_nullable ∧ s.is_nullable) ∧ cs = [] | case h.mp
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs : List α
⊢ (∃ r_1, (r.is_nullable ∧ r_1 = []) ∧ ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ r_1 ++ s_1 = cs) →
(r.is_nullable ∧ s.is_nullable) ∧ cs = []
case h.mpr
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs : List α
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] →
∃ r_1, (r.is_nullable ∧ r_1 = []) ∧ ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ r_1 ++ s_1 = cs |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | intro a1 | case h.mp
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs : List α
⊢ (∃ r_1, (r.is_nullable ∧ r_1 = []) ∧ ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ r_1 ++ s_1 = cs) →
(r.is_nullable ∧ s.is_nullable) ∧ cs = [] | case h.mp
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs : List α
a1 : ∃ r_1, (r.is_nullable ∧ r_1 = []) ∧ ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ r_1 ++ s_1 = cs
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | apply Exists.elim a1 | case h.mp
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs : List α
a1 : ∃ r_1, (r.is_nullable ∧ r_1 = []) ∧ ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ r_1 ++ s_1 = cs
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] | case h.mp
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs : List α
a1 : ∃ r_1, (r.is_nullable ∧ r_1 = []) ∧ ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ r_1 ++ s_1 = cs
⊢ ∀ (a : List α),
((r.is_nullable ∧ a = []) ∧ ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ a ++ s_1 = cs) →
(r.is_nullable ∧ s.is_nullable) ∧ cs = [] |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | intro xs a2 | case h.mp
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs : List α
a1 : ∃ r_1, (r.is_nullable ∧ r_1 = []) ∧ ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ r_1 ++ s_1 = cs
⊢ ∀ (a : List α),
((r.is_nullable ∧ a = []) ∧ ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ a ++ s_1 = cs) →
(r.is_nullable ∧ s.is_nullable) ∧ cs = [] | case h.mp
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs : List α
a1 : ∃ r_1, (r.is_nullable ∧ r_1 = []) ∧ ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ r_1 ++ s_1 = cs
xs : List α
a2 : (r.is_nullable ∧ xs = []) ∧ ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ xs ++ s_1 = cs
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | clear a1 | case h.mp
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs : List α
a1 : ∃ r_1, (r.is_nullable ∧ r_1 = []) ∧ ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ r_1 ++ s_1 = cs
xs : List α
a2 : (r.is_nullable ∧ xs = []) ∧ ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ xs ++ s_1 = cs
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] | case h.mp
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2 : (r.is_nullable ∧ xs = []) ∧ ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ xs ++ s_1 = cs
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | cases a2 | case h.mp
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2 : (r.is_nullable ∧ xs = []) ∧ ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ xs ++ s_1 = cs
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] | case h.mp.intro
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
left✝ : r.is_nullable ∧ xs = []
right✝ : ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ xs ++ s_1 = cs
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | case _ a2_left a2_right =>
cases a2_left
case _ a2_left_left a2_left_right =>
apply Exists.elim a2_right
intro ys a3
clear a2_right
cases a3
case _ a3_left a3_right =>
cases a3_left
case _ a3_left_left a3_left_right =>
simp only [a2_left_left]
simp only [a3_left_left]
simp only [a2_left_right] at a3_right
simp only [a3_left_right] at a3_right
simp at a3_right
tauto | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_left : r.is_nullable ∧ xs = []
a2_right : ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ xs ++ s_1 = cs
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | cases a2_left | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_left : r.is_nullable ∧ xs = []
a2_right : ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ xs ++ s_1 = cs
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] | case intro
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_right : ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ xs ++ s_1 = cs
left✝ : r.is_nullable
right✝ : xs = []
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | case _ a2_left_left a2_left_right =>
apply Exists.elim a2_right
intro ys a3
clear a2_right
cases a3
case _ a3_left a3_right =>
cases a3_left
case _ a3_left_left a3_left_right =>
simp only [a2_left_left]
simp only [a3_left_left]
simp only [a2_left_right] at a3_right
simp only [a3_left_right] at a3_right
simp at a3_right
tauto | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_right : ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ xs ++ s_1 = cs
a2_left_left : r.is_nullable
a2_left_right : xs = []
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | apply Exists.elim a2_right | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_right : ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ xs ++ s_1 = cs
a2_left_left : r.is_nullable
a2_left_right : xs = []
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_right : ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ xs ++ s_1 = cs
a2_left_left : r.is_nullable
a2_left_right : xs = []
⊢ ∀ (a : List α), (s.is_nullable ∧ a = []) ∧ xs ++ a = cs → (r.is_nullable ∧ s.is_nullable) ∧ cs = [] |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | intro ys a3 | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_right : ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ xs ++ s_1 = cs
a2_left_left : r.is_nullable
a2_left_right : xs = []
⊢ ∀ (a : List α), (s.is_nullable ∧ a = []) ∧ xs ++ a = cs → (r.is_nullable ∧ s.is_nullable) ∧ cs = [] | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_right : ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ xs ++ s_1 = cs
a2_left_left : r.is_nullable
a2_left_right : xs = []
ys : List α
a3 : (s.is_nullable ∧ ys = []) ∧ xs ++ ys = cs
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | clear a2_right | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_right : ∃ s_1, (s.is_nullable ∧ s_1 = []) ∧ xs ++ s_1 = cs
a2_left_left : r.is_nullable
a2_left_right : xs = []
ys : List α
a3 : (s.is_nullable ∧ ys = []) ∧ xs ++ ys = cs
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_left_left : r.is_nullable
a2_left_right : xs = []
ys : List α
a3 : (s.is_nullable ∧ ys = []) ∧ xs ++ ys = cs
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | cases a3 | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_left_left : r.is_nullable
a2_left_right : xs = []
ys : List α
a3 : (s.is_nullable ∧ ys = []) ∧ xs ++ ys = cs
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] | case intro
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_left_left : r.is_nullable
a2_left_right : xs = []
ys : List α
left✝ : s.is_nullable ∧ ys = []
right✝ : xs ++ ys = cs
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | case _ a3_left a3_right =>
cases a3_left
case _ a3_left_left a3_left_right =>
simp only [a2_left_left]
simp only [a3_left_left]
simp only [a2_left_right] at a3_right
simp only [a3_left_right] at a3_right
simp at a3_right
tauto | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_left_left : r.is_nullable
a2_left_right : xs = []
ys : List α
a3_left : s.is_nullable ∧ ys = []
a3_right : xs ++ ys = cs
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | cases a3_left | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_left_left : r.is_nullable
a2_left_right : xs = []
ys : List α
a3_left : s.is_nullable ∧ ys = []
a3_right : xs ++ ys = cs
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] | case intro
α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_left_left : r.is_nullable
a2_left_right : xs = []
ys : List α
a3_right : xs ++ ys = cs
left✝ : s.is_nullable
right✝ : ys = []
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | case _ a3_left_left a3_left_right =>
simp only [a2_left_left]
simp only [a3_left_left]
simp only [a2_left_right] at a3_right
simp only [a3_left_right] at a3_right
simp at a3_right
tauto | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_left_left : r.is_nullable
a2_left_right : xs = []
ys : List α
a3_right : xs ++ ys = cs
a3_left_left : s.is_nullable
a3_left_right : ys = []
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] | no goals |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [a2_left_left] | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_left_left : r.is_nullable
a2_left_right : xs = []
ys : List α
a3_right : xs ++ ys = cs
a3_left_left : s.is_nullable
a3_left_right : ys = []
⊢ (r.is_nullable ∧ s.is_nullable) ∧ cs = [] | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_left_left : r.is_nullable
a2_left_right : xs = []
ys : List α
a3_right : xs ++ ys = cs
a3_left_left : s.is_nullable
a3_left_right : ys = []
⊢ (True ∧ s.is_nullable) ∧ cs = [] |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [a3_left_left] | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_left_left : r.is_nullable
a2_left_right : xs = []
ys : List α
a3_right : xs ++ ys = cs
a3_left_left : s.is_nullable
a3_left_right : ys = []
⊢ (True ∧ s.is_nullable) ∧ cs = [] | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_left_left : r.is_nullable
a2_left_right : xs = []
ys : List α
a3_right : xs ++ ys = cs
a3_left_left : s.is_nullable
a3_left_right : ys = []
⊢ (True ∧ True) ∧ cs = [] |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [a2_left_right] at a3_right | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_left_left : r.is_nullable
a2_left_right : xs = []
ys : List α
a3_right : xs ++ ys = cs
a3_left_left : s.is_nullable
a3_left_right : ys = []
⊢ (True ∧ True) ∧ cs = [] | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_left_left : r.is_nullable
a2_left_right : xs = []
ys : List α
a3_left_left : s.is_nullable
a3_left_right : ys = []
a3_right : [] ++ ys = cs
⊢ (True ∧ True) ∧ cs = [] |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp only [a3_left_right] at a3_right | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_left_left : r.is_nullable
a2_left_right : xs = []
ys : List α
a3_left_left : s.is_nullable
a3_left_right : ys = []
a3_right : [] ++ ys = cs
⊢ (True ∧ True) ∧ cs = [] | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_left_left : r.is_nullable
a2_left_right : xs = []
ys : List α
a3_left_left : s.is_nullable
a3_left_right : ys = []
a3_right : [] ++ [] = cs
⊢ (True ∧ True) ∧ cs = [] |
https://github.com/pthomas505/FOL.git | 097a4abea51b641d144539b9a0f7516f3b9d818c | FOL/Parsing/Brzozowski.lean | language_of_delta | [121, 1] | [197, 11] | simp at a3_right | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_left_left : r.is_nullable
a2_left_right : xs = []
ys : List α
a3_left_left : s.is_nullable
a3_left_right : ys = []
a3_right : [] ++ [] = cs
⊢ (True ∧ True) ∧ cs = [] | α : Type
r s : RegExp α
r_ih : RegExp.languageOf α r.delta = if r.is_nullable then {[]} else ∅
s_ih : RegExp.languageOf α s.delta = if s.is_nullable then {[]} else ∅
cs xs : List α
a2_left_left : r.is_nullable
a2_left_right : xs = []
ys : List α
a3_left_left : s.is_nullable
a3_left_right : ys = []
a3_right : [] = cs
⊢ (True ∧ True) ∧ cs = [] |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.