diff -r eb91ec1ef6f0 -r 1f990689349f src/HOL/MicroJava/J/Eval.thy
--- a/src/HOL/MicroJava/J/Eval.thy	Sat Oct 24 16:55:42 2009 +0200
+++ b/src/HOL/MicroJava/J/Eval.thy	Sat Oct 24 16:55:42 2009 +0200
@@ -40,7 +40,7 @@
           ("_ \<turnstile> _ -_[\<succ>]_-> _" [51,82,60,51,82] 81)
   and exec :: "[java_mb prog,xstate,stmt,    xstate] => bool "
           ("_ \<turnstile> _ -_-> _" [51,82,60,82] 81)
-  for G :: "java_mb prog"
+  (*for G :: "java_mb prog"*)
 where
 
   -- "evaluation of expressions"