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src/HOL/Number_Theory/UniqueFactorization.thy
changeset 39302 d7728f65b353
parent 37290 3464d7232670
child 40461 e876e95588ce 
--- a/src/HOL/Number_Theory/UniqueFactorization.thy	Mon Sep 13 08:43:48 2010 +0200
+++ b/src/HOL/Number_Theory/UniqueFactorization.thy	Mon Sep 13 11:13:15 2010 +0200
@@ -213,7 +213,7 @@
     ultimately have "count M a = count N a"
       by auto
   }
-  thus ?thesis by (simp add:multiset_ext_iff)
+  thus ?thesis by (simp add:multiset_eq_iff)
 qed
 
 definition multiset_prime_factorization :: "nat => nat multiset" where
isabelle