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authorGravatar Samuel Mimram <smimram@debian.org>2008-07-25 15:12:53 +0200
committerGravatar Samuel Mimram <smimram@debian.org>2008-07-25 15:12:53 +0200
commita0cfa4f118023d35b767a999d5a2ac4b082857b4 (patch)
treedabcac548e299fee1da464c93b3dba98484f45b1 /test-suite/bugs/closed/shouldsucceed/1446.v
parent2281410e38ef99d025ea77194585a9bc019fdaa9 (diff)
Imported Upstream version 8.2~beta3+dfsgupstream/8.2.beta3+dfsg
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+Lemma not_true_eq_false : forall (b:bool), b <> true -> b = false.
+Proof.
+ destruct b;intros;trivial.
+ elim H.
+ exact (refl_equal true).
+Qed.
+
+Section BUG.
+
+ Variable b : bool.
+ Hypothesis H : b <> true.
+ Hypothesis H0 : b = true.
+ Hypothesis H1 : b <> true.
+
+ Goal False.
+ rewrite (not_true_eq_false _ H) in * |-.
+ contradiction.
+ Qed.
+
+End BUG.