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tactique apply généralisée, à commenter

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This commit is contained in:
Marwan 2024-05-14 15:55:19 +02:00
parent b4ba9432cd
commit 00c1a116d1
1 changed files with 14 additions and 12 deletions
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26
proof.ml
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@ -217,21 +217,21 @@ let tact_apply ((g, gs) : proof) (hyp_id : id) : proof =
| _ -> false
in
let rec generate_goals (goal_ty : ty) (impl_ty : ty) (impl_h : hlam)
(goal_h : hlam) (cs : context) (gs : goal list) : proof =
(goal_h : hlam) (h : hlam) (cs : context) (gs : goal list) : proof =
match impl_ty with
Arr (t1, t2) when t2 = goal_ty ->
let sub_h = Ref (ref Hole) in
let _ = fill goal_h (HApp (impl_h, sub_h)) in
let _ = fill h sub_h in
let _ = fill goal_h impl_h in
Some (sub_h, t1, cs), gs
| Arr (t1, t2) ->
(* nouveau sous but *)
let sub_h = Ref (ref Hole) in (* preuve de t1 *)
let new_h = Ref (ref Hole) in (* suite de l'implication *)
let _ = fill impl_h (HApp (HApp (impl_h, sub_h), new_h)) in
let sub_h = Ref (ref Hole) in
let new_h = Ref (ref Hole) in
let _ = fill h sub_h in
let impl_h = HApp (impl_h, new_h) in
let gs = (sub_h, t1, cs) :: gs in
generate_goals goal_ty t2 new_h goal_h cs gs
generate_goals goal_ty t2 impl_h goal_h new_h cs gs
| _ -> failwith "impossible"
in
let rec get_hyp : context -> (hlam * ty) = function
[] -> raise (TacticFailed "no such hypothesis in context")
@ -240,10 +240,12 @@ let tact_apply ((g, gs) : proof) (hyp_id : id) : proof =
in
match g with
None -> raise (TacticFailed "no current goal")
| Some (h, goal_ty, cs) ->
let h', t' = get_hyp cs in
if is_implied goal_ty t'
then generate_goals goal_ty t' h' h cs gs
| Some (goal_h, goal_ty, cs) ->
let impl_h, impl_ty = get_hyp cs in
let new_h = Ref (ref Hole) in
let impl_h_2 = HApp (impl_h, new_h) in
if is_implied goal_ty impl_ty
then generate_goals goal_ty impl_ty impl_h_2 goal_h new_h cs gs
else raise (TacticFailed "not an implication")
let tact_intros : proof -> proof =