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src/HOL/NumberTheory/IntPrimes.thy
changeset 13601 fd3e3d6b37b2
parent 13524 604d0f3622d6
child 13630 a013a9dd370f 
--- a/src/HOL/NumberTheory/IntPrimes.thy	Mon Sep 30 16:12:16 2002 +0200
+++ b/src/HOL/NumberTheory/IntPrimes.thy	Mon Sep 30 16:14:02 2002 +0200
@@ -544,7 +544,6 @@
      apply (simp add: zgcd_commute)
     apply (simp add: zmult_commute)
    apply (auto simp add: dvd_def)
-  apply (blast intro: sym)
   done
 
 lemma zcong_zless_imp_eq:
isabelle