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src/HOL/HOLCF/IOA/meta_theory/Traces.thy
changeset 45606 b1e1508643b1
parent 42151 4da4fc77664b
child 51703 f2e92fc0c8aa 
--- a/src/HOL/HOLCF/IOA/meta_theory/Traces.thy	Sun Nov 20 21:05:23 2011 +0100
+++ b/src/HOL/HOLCF/IOA/meta_theory/Traces.thy	Sun Nov 20 21:07:06 2011 +0100
@@ -402,7 +402,7 @@
 done
 
 lemmas exec_prefixclosed =
-  conjI [THEN execfrag_prefixclosed [THEN spec, THEN spec, THEN mp], standard]
+  conjI [THEN execfrag_prefixclosed [THEN spec, THEN spec, THEN mp]]
 
 
 (* second prefix notion for Finite x *)
isabelle