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src/HOL/Number_Theory/MiscAlgebra.thy
changeset 44890 22f665a2e91c
parent 44872 a98ef45122f3
child 53374 a14d2a854c02 
--- a/src/HOL/Number_Theory/MiscAlgebra.thy	Sun Sep 11 22:56:05 2011 +0200
+++ b/src/HOL/Number_Theory/MiscAlgebra.thy	Mon Sep 12 07:55:43 2011 +0200
@@ -259,7 +259,7 @@
   apply blast
   apply (erule finite_UN_I)
   apply blast
-  apply (fastsimp)
+  apply (fastforce)
   apply (auto intro!: funcsetI finprod_closed)
   done
isabelle