diff -r a6cd1a454751 -r 4b3d280ef06a src/HOL/MicroJava/Comp/CorrComp.thy
--- a/src/HOL/MicroJava/Comp/CorrComp.thy	Thu Jul 22 19:33:12 2004 +0200
+++ b/src/HOL/MicroJava/Comp/CorrComp.thy	Mon Jul 26 15:48:50 2004 +0200
@@ -52,7 +52,7 @@
 done
 
 theorem exec_all_refl: "exec_all G s s"
-by (simp only: exec_all_def, rule rtrancl_refl)
+by (simp only: exec_all_def (* CBtrancl, rule rtrancl_refl*) )
 
 
 theorem exec_instr_in_exec_all: