From: Enrico Tassi <enrico.tassi@inria.fr>
Date: Wed, 2 Apr 2008 09:23:30 +0000 (+0000)
Subject: removed dummy rewrites
X-Git-Tag: make_still_working~5472
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=68d0514bb21f373827bc3578a6b30e5fd95b6271;p=helm.git

removed dummy rewrites
---

diff --git a/helm/software/matita/library/list/in.ma b/helm/software/matita/library/list/in.ma
index cd372394b..0e3be3a8f 100644
--- a/helm/software/matita/library/list/in.ma
+++ b/helm/software/matita/library/list/in.ma
@@ -113,8 +113,7 @@ intros 5.elim l
   [elim (not_in_list_nil ? ? H1)
   |elim H2
     [simplify;rewrite > H;reflexivity
-    |simplify;rewrite > H4;apply (bool_elim ? (equ a a1));intro;rewrite > H5;
-     reflexivity]].
+    |simplify;rewrite > H4;apply (bool_elim ? (equ a a1));intro;reflexivity]].
 qed.
 
 lemma in_list_filter_to_p_true : \forall l,x,p.
@@ -146,7 +145,7 @@ intros 3;elim l
   [elim (not_in_list_nil ? ? H)
   |elim (in_list_cons_case ? ? ? ? H1)
      [rewrite < H3;simplify;rewrite > H2;simplify;apply in_list_head
-     |simplify;apply (bool_elim ? (p t));intro;rewrite > H4;simplify
+     |simplify;apply (bool_elim ? (p t));intro;simplify;
         [apply in_list_cons;apply H;assumption
         |apply H;assumption]]]
 qed.