--- a/src/HOL/Hoare_Parallel/RG_Hoare.thy Sun Nov 02 17:27:22 2014 +0100
+++ b/src/HOL/Hoare_Parallel/RG_Hoare.thy Sun Nov 02 17:36:52 2014 +0100
@@ -1,4 +1,4 @@
-header {* \section{The Proof System} *}
+section {* The Proof System *}
theory RG_Hoare imports RG_Tran begin