diff -r fef1df4268d6 -r be4d203d35b3 src/HOL/Hoare_Parallel/RG_Syntax.thy
--- a/src/HOL/Hoare_Parallel/RG_Syntax.thy	Sun Nov 02 17:27:22 2014 +0100
+++ b/src/HOL/Hoare_Parallel/RG_Syntax.thy	Sun Nov 02 17:36:52 2014 +0100
@@ -1,4 +1,4 @@
-header {* \section{Concrete Syntax} *}
+section {* Concrete Syntax *}
 
 theory RG_Syntax
 imports RG_Hoare Quote_Antiquote