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src/HOL/Equiv_Relations.thy
changeset 44279 7496258e44e4
parent 44278 1220ecb81e8f
child 44890 22f665a2e91c 
--- a/src/HOL/Equiv_Relations.thy	Thu Aug 18 13:55:26 2011 +0200
+++ b/src/HOL/Equiv_Relations.thy	Thu Aug 18 14:01:06 2011 +0200
@@ -413,7 +413,7 @@
 
 lemma equivpI:
   "reflp R \<Longrightarrow> symp R \<Longrightarrow> transp R \<Longrightarrow> equivp R"
-  by (auto simp add: mem_def elim: reflpE sympE transpE simp add: equivp_def)
+  by (auto elim: reflpE sympE transpE simp add: equivp_def mem_def)
 
 lemma equivpE:
   assumes "equivp R"
isabelle