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