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author | Enrico Tassi <gareuselesinge@debian.org> | 2015-01-25 14:42:51 +0100 |
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committer | Enrico Tassi <gareuselesinge@debian.org> | 2015-01-25 14:42:51 +0100 |
commit | 7cfc4e5146be5666419451bdd516f1f3f264d24a (patch) | |
tree | e4197645da03dc3c7cc84e434cc31d0a0cca7056 /test-suite/bugs/closed/3258.v | |
parent | 420f78b2caeaaddc6fe484565b2d0e49c66888e5 (diff) |
Imported Upstream version 8.5~beta1+dfsg
Diffstat (limited to 'test-suite/bugs/closed/3258.v')
-rw-r--r-- | test-suite/bugs/closed/3258.v | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/test-suite/bugs/closed/3258.v b/test-suite/bugs/closed/3258.v new file mode 100644 index 00000000..a1390e30 --- /dev/null +++ b/test-suite/bugs/closed/3258.v @@ -0,0 +1,35 @@ +Require Import Coq.Classes.Morphisms Coq.Classes.RelationClasses Coq.Program.Program Coq.Setoids.Setoid. + +Global Set Implicit Arguments. + +Hint Extern 0 => apply reflexivity : typeclass_instances. + +Inductive Comp : Type -> Type := +| Pick : forall A, (A -> Prop) -> Comp A. + +Axiom computes_to : forall A, Comp A -> A -> Prop. + +Axiom refine : forall {A} (old : Comp A) (new : Comp A), Prop. + +Global Instance refine_PreOrder A : PreOrder (@refine A). +Admitted. +Add Parametric Morphism A +: (@Pick A) + with signature + (pointwise_relation _ (flip impl)) + ==> (@refine A) + as refine_flip_impl_Pick. + admit. +Defined. +Definition remove_forall_eq' A x B (P : A -> B -> Prop) : pointwise_relation _ impl (P x) (fun z => forall y : A, y = x -> P y z). + admit. +Defined. +Goal forall A B (x : A) (P : _ -> _ -> Prop), + refine (Pick (fun n : B => forall y, y = x -> P y n)) + (Pick (fun n : B => P x n)). +Proof. + intros. + setoid_rewrite (@remove_forall_eq' _ _ _ _). + Undo. + (* This failed with NotConvertible at some time *) + setoid_rewrite (@remove_forall_eq' _ _ _). |