diff -r a273bdac0934 -r 8b5f00202e1a src/HOL/MicroJava/DFA/Abstract_BV.thy
--- a/src/HOL/MicroJava/DFA/Abstract_BV.thy	Wed Oct 07 19:45:00 2015 +0200
+++ b/src/HOL/MicroJava/DFA/Abstract_BV.thy	Wed Oct 07 23:28:49 2015 +0200
@@ -3,7 +3,7 @@
     Copyright   2003 TUM
 *)
 
-section {* Abstract Bytecode Verifier *}
+section \<open>Abstract Bytecode Verifier\<close>
 
 (*<*)
 theory Abstract_BV