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/opened/1811.v | 10 ++++++++++ 1 file changed, 10 insertions(+) create mode 100644 test-suite/bugs/opened/1811.v (limited to 'test-suite/bugs/opened/1811.v') diff --git a/test-suite/bugs/opened/1811.v b/test-suite/bugs/opened/1811.v new file mode 100644 index 00000000..10c988fc --- /dev/null +++ b/test-suite/bugs/opened/1811.v @@ -0,0 +1,10 @@ +Require Export Bool. + +Lemma neg2xor : forall b, xorb true b = negb b. +Proof. auto. Qed. + +Goal forall b1 b2, (negb b1 = b2) -> xorb true b1 = b2. +Proof. + intros b1 b2. + Fail rewrite neg2xor. +Abort. \ No newline at end of file -- cgit v1.2.3