diff options
author | Stephane Glondu <steph@glondu.net> | 2010-07-21 09:46:51 +0200 |
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committer | Stephane Glondu <steph@glondu.net> | 2010-07-21 09:46:51 +0200 |
commit | 5b7eafd0f00a16d78f99a27f5c7d5a0de77dc7e6 (patch) | |
tree | 631ad791a7685edafeb1fb2e8faeedc8379318ae /test-suite/bugs/closed/shouldsucceed/2139.v | |
parent | da178a880e3ace820b41d38b191d3785b82991f5 (diff) |
Imported Upstream snapshot 8.3~beta0+13298
Diffstat (limited to 'test-suite/bugs/closed/shouldsucceed/2139.v')
-rw-r--r-- | test-suite/bugs/closed/shouldsucceed/2139.v | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/test-suite/bugs/closed/shouldsucceed/2139.v b/test-suite/bugs/closed/shouldsucceed/2139.v new file mode 100644 index 00000000..a7f35508 --- /dev/null +++ b/test-suite/bugs/closed/shouldsucceed/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 ? *) |