diff -r c39994cb152a -r c1c163ec6c44 src/HOL/MicroJava/BV/BVExample.thy
--- a/src/HOL/MicroJava/BV/BVExample.thy	Mon May 18 09:48:06 2009 +0200
+++ b/src/HOL/MicroJava/BV/BVExample.thy	Mon May 18 23:15:38 2009 +0200
@@ -69,9 +69,9 @@
 lemma subcls1:
   "subcls1 E = (\<lambda>C D. (C, D) \<in> {(list_name,Object), (test_name,Object), (Xcpt NullPointer, Object),
                 (Xcpt ClassCast, Object), (Xcpt OutOfMemory, Object)})"
-apply (simp add: subcls1_def2 del:singleton_conj_conv2)
+apply (simp add: subcls1_def2)
 apply (simp add: name_defs class_defs system_defs E_def class_def)
-apply (auto simp: expand_fun_eq split: split_if_asm)
+apply (auto simp: expand_fun_eq)
 done
 
 text {* The subclass relation is acyclic; hence its converse is well founded: *}