diff options
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/2310.v | |
parent | 420f78b2caeaaddc6fe484565b2d0e49c66888e5 (diff) |
Imported Upstream version 8.5~beta1+dfsg
Diffstat (limited to 'test-suite/bugs/closed/2310.v')
-rw-r--r-- | test-suite/bugs/closed/2310.v | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test-suite/bugs/closed/2310.v b/test-suite/bugs/closed/2310.v new file mode 100644 index 00000000..0be859ed --- /dev/null +++ b/test-suite/bugs/closed/2310.v @@ -0,0 +1,17 @@ +(* Dependent higher-order hole in "refine" (simplified version) *) + +Set Implicit Arguments. + +Inductive Nest t := Cons : Nest (prod t t) -> Nest t. + +Definition cast A x y Heq P H := @eq_rect A x P H y Heq. + +Definition replace a (y:Nest (prod a a)) : a = a -> Nest a. + +(* This used to raise an anomaly Unknown Meta in 8.2 and 8.3beta. + It raises a regular error in 8.3 and almost succeeds with the new + proof engine: there are two solutions to a unification problem + (P:=\a.Nest (prod a a) and P:=\_.Nest (prod a a)) and refine should either + leave P as subgoal or choose itself one solution *) + +intros. refine (Cons (cast H _ y)).
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