From 7cfc4e5146be5666419451bdd516f1f3f264d24a Mon Sep 17 00:00:00 2001 From: Enrico Tassi Date: Sun, 25 Jan 2015 14:42:51 +0100 Subject: Imported Upstream version 8.5~beta1+dfsg --- test-suite/bugs/closed/2139.v | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 test-suite/bugs/closed/2139.v (limited to 'test-suite/bugs/closed/2139.v') diff --git a/test-suite/bugs/closed/2139.v b/test-suite/bugs/closed/2139.v new file mode 100644 index 00000000..a7f35508 --- /dev/null +++ b/test-suite/bugs/closed/2139.v @@ -0,0 +1,24 @@ +(* Call of apply on <-> failed because of evars in elimination predicate *) +Generalizable Variables patch. + +Class Patch (patch : Type) := { + commute : patch -> patch -> Prop +}. + +Parameter flip : forall `{patchInstance : Patch patch} + {a b : patch}, + commute a b <-> commute b a. + +Lemma Foo : forall `{patchInstance : Patch patch} + {a b : patch}, + (commute a b) + -> True. +Proof. +intros. +apply flip in H. + +(* failed in well-formed arity check because elimination predicate of + iff in (@flip _ _ _ _) had normalized evars while the ones in the + type of (@flip _ _ _ _) itself had non-normalized evars *) + +(* By the way, is the check necessary ? *) -- cgit v1.2.3