From 9043add656177eeac1491a73d2f3ab92bec0013c Mon Sep 17 00:00:00 2001 From: Benjamin Barenblat Date: Sat, 29 Dec 2018 14:31:27 -0500 Subject: Imported Upstream version 8.8.2 --- test-suite/bugs/closed/5377.v | 54 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 test-suite/bugs/closed/5377.v (limited to 'test-suite/bugs/closed/5377.v') diff --git a/test-suite/bugs/closed/5377.v b/test-suite/bugs/closed/5377.v new file mode 100644 index 00000000..130d9f9a --- /dev/null +++ b/test-suite/bugs/closed/5377.v @@ -0,0 +1,54 @@ +Goal ((forall (t : Type) (x y : t), + True -> + x = y)) -> False. +Proof. + intro HG. + let P := lazymatch goal with + | [ H : forall t x y, True -> @?P t x y + |- _ ] + => P + end in + pose (f := P). + unify f (fun (t : Type) (x y : t) => x = y). +Abort. + +Goal True. +Proof. +let c := lazymatch constr:(fun (T : nat -> Type) (y : nat) (_ : T y) => y) with + | fun _ y _ => @?C y => C + end in +pose (f := c). +unify f (fun n : nat => n). +Abort. + +Goal (forall x : nat, x = x -> x = x \/ x = x) -> True. +Proof. +intro. +let P := lazymatch goal with +| [ H : forall y, @?P y -> @?P y \/ _ |- _ ] + => P +end in +pose (f := P). +unify f (fun x : nat => x = x). +Abort. + +Goal (forall x : nat, x = x -> x = x \/ x = x) -> True. +Proof. +intro. +lazymatch goal with +| [ H : forall y, @?P y -> @?Q y \/ _ |- _ ] + => idtac +end. +Abort. + +Axiom eq : forall {T} (_ : T), Prop. + +Goal forall _ : (forall t (_ : eq t) (x : t), eq x), Prop. +Proof. +intro. +let P := lazymatch goal with +| [ H : forall t _ x, @?P t x |- _ ] + => P +end in +pose (f := P). +Abort. -- cgit v1.2.3