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src/HOL/HoareParallel/OG_Hoare.thy
changeset 32139 e271a64f03ff
parent 26811 067cceb36e26 
--- a/src/HOL/HoareParallel/OG_Hoare.thy	Wed Jul 22 14:21:52 2009 +0200
+++ b/src/HOL/HoareParallel/OG_Hoare.thy	Wed Jul 22 18:02:10 2009 +0200
@@ -441,7 +441,7 @@
       apply clarify
       apply(frule Parallel_length_post_PStar)
       apply clarify
-      apply(drule_tac j=xa in Parallel_Strong_Soundness)
+      apply(drule_tac j=xb in Parallel_Strong_Soundness)
          apply clarify
         apply simp
        apply force
isabelle