From: Enrico Tassi <enrico.tassi@inria.fr>
Date: Wed, 27 Sep 2006 16:19:17 +0000 (+0000)
Subject: ...
X-Git-Tag: make_still_working~6843
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=b396fcf2d604ed9b9952217539ff69e2f5fff3c5;p=helm.git

...
---

diff --git a/helm/software/matita/library/technicalities/setoids.ma b/helm/software/matita/library/technicalities/setoids.ma
index d730d06de..c440795ff 100644
--- a/helm/software/matita/library/technicalities/setoids.ma
+++ b/helm/software/matita/library/technicalities/setoids.ma
@@ -245,7 +245,8 @@ definition equality_morphism_of_symmetric_reflexive_transitive_relation:
     split;
     intro;
     unfold transitive in H;
-    auto
+    unfold symmetric in sym;
+    auto.
   ]
 qed.