--- a/src/HOL/MicroJava/J/Example.thy Tue Aug 09 23:29:54 2016 +0200
+++ b/src/HOL/MicroJava/J/Example.thy Wed Aug 10 09:33:54 2016 +0200
@@ -191,7 +191,7 @@
lemma class_tprgD:
"class tprg C = Some z ==> C=Object \<or> C=Base \<or> C=Ext \<or> C=Xcpt NP \<or> C=Xcpt ClassCast \<or> C=Xcpt OutOfMemory"
apply (unfold ObjectC_def ClassCastC_def NullPointerC_def OutOfMemoryC_def BaseC_def ExtC_def class_def)
-apply (auto split add: if_split_asm simp add: map_of_Cons)
+apply (auto split: if_split_asm simp add: map_of_Cons)
done
lemma not_class_subcls_class [elim!]: "(C, C) \<in> (subcls1 tprg)^+ ==> R"