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/2145.v | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 test-suite/bugs/closed/2145.v (limited to 'test-suite/bugs/closed/2145.v') diff --git a/test-suite/bugs/closed/2145.v b/test-suite/bugs/closed/2145.v new file mode 100644 index 00000000..4dc0de74 --- /dev/null +++ b/test-suite/bugs/closed/2145.v @@ -0,0 +1,20 @@ +(* Test robustness of Groebner tactic in presence of disequalities *) + +Require Export Reals. +Require Export Nsatz. + +Open Scope R_scope. + +Lemma essai : + forall yb xb m1 m2 xa ya, + xa <> xb -> + yb - 2 * m2 * xb = ya - m2 * xa -> + yb - m1 * xb = ya - m1 * xa -> + yb - ya = (2 * xb - xa) * m2 -> + yb - ya = (xb - xa) * m1. +Proof. +intros. +(* clear H. groebner used not to work when H was not cleared *) +nsatz. +Qed. + -- cgit v1.2.3