From 6522aa62d832837314dcef54735e6a4e55431571 Mon Sep 17 00:00:00 2001
From: Hugo Herbelin
Date: Thu, 8 May 2014 13:24:16 +0200
Subject: Simplification and improvement of "subst x" in such a way that it
 works in the presence of local definitions referring to x and dependent in
 other hyps or concl.

---
 test-suite/success/rewrite.v | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'test-suite')

diff --git a/test-suite/success/rewrite.v b/test-suite/success/rewrite.v
index 08c406be94..0e1e778635 100644
--- a/test-suite/success/rewrite.v
+++ b/test-suite/success/rewrite.v
@@ -129,3 +129,12 @@ intros.
 Fail rewrite H in H0.
 Abort.
 
+(* Test subst in the presence of a dependent let-in *)
+(* Was not working prior to May 2014 *)
+
+Goal forall x y, x=y+0 -> let z := x+1 in x+1=y -> z=z -> z=x.
+intros.
+subst x. (* was failing *)
+rewrite H0.
+reflexivity.
+Qed.
-- 
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