diff options
| author | Gaëtan Gilbert | 2021-02-26 17:35:31 +0100 |
|---|---|---|
| committer | Gaëtan Gilbert | 2021-03-04 01:11:19 +0100 |
| commit | 0cb04b50bfde83001e59cd74da77142b567706d9 (patch) | |
| tree | 6d81d23385b6c2f0067842b59e24820fb7149c42 /plugins | |
| parent | bb4e1a76802a5440605264320ed528331ec0e2b7 (diff) | |
Fix #12011 ssreflect "rewrite in" with setoids
ssreflect asks setoid rewrite to rewrite in goal
"forall_special_name_ : T, _other_name_"
Since this is a non dependent product, setoid rewrite converts that to
"impl T _other_name_" and must be taught to restore the special name
when unfolding impl.
Diffstat (limited to 'plugins')
| -rw-r--r-- | plugins/ltac/rewrite.ml | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/plugins/ltac/rewrite.ml b/plugins/ltac/rewrite.ml index 6d0e0c36b3..c7bda43465 100644 --- a/plugins/ltac/rewrite.ml +++ b/plugins/ltac/rewrite.ml @@ -251,10 +251,10 @@ end) = struct (** Folding/unfolding of the tactic constants. *) - let unfold_impl sigma t = + let unfold_impl n sigma t = match EConstr.kind sigma t with | App (arrow, [| a; b |])(* when eq_constr arrow (Lazy.force impl) *) -> - mkProd (make_annot Anonymous Sorts.Relevant, a, lift 1 b) + mkProd (make_annot n Sorts.Relevant, a, lift 1 b) | _ -> assert false let unfold_all sigma t = @@ -273,16 +273,16 @@ end) = struct | _ -> assert false) | _ -> assert false - let arrow_morphism env evd ta tb a b = + let arrow_morphism env evd n ta tb a b = let ap = is_Prop (goalevars evd) ta and bp = is_Prop (goalevars evd) tb in - if ap && bp then app_poly env evd impl [| a; b |], unfold_impl + if ap && bp then app_poly env evd impl [| a; b |], unfold_impl n else if ap then (* Domain in Prop, CoDomain in Type *) - (app_poly env evd arrow [| a; b |]), unfold_impl + (app_poly env evd arrow [| a; b |]), unfold_impl n (* (evd, mkProd (Anonymous, a, b)), (fun x -> x) *) else if bp then (* Dummy forall *) - (app_poly env evd coq_all [| a; mkLambda (make_annot Anonymous Sorts.Relevant, a, lift 1 b) |]), unfold_forall + (app_poly env evd coq_all [| a; mkLambda (make_annot n Sorts.Relevant, a, lift 1 b) |]), unfold_forall else (* None in Prop, use arrow *) - (app_poly env evd arrow [| a; b |]), unfold_impl + (app_poly env evd arrow [| a; b |]), unfold_impl n let rec decomp_pointwise sigma n c = if Int.equal n 0 then c @@ -1079,7 +1079,7 @@ let subterm all flags (s : 'a pure_strategy) : 'a pure_strategy = let arr = if prop then PropGlobal.arrow_morphism else TypeGlobal.arrow_morphism in - let (evars', mor), unfold = arr env evars tx tb x b in + let (evars', mor), unfold = arr env evars n.binder_name tx tb x b in let state, res = aux { state ; env ; unfresh ; term1 = mor ; ty1 = ty ; cstr = (prop,cstr) ; evars = evars' } in |