--- a/src/Doc/System/Server.thy Fri May 11 11:42:23 2018 +0200
+++ b/src/Doc/System/Server.thy Fri May 11 17:27:30 2018 +0200
@@ -826,7 +826,7 @@
\<close>
-subsection \<open>Examples\<close>
+subsubsection \<open>Examples\<close>
text \<open>
Start a default Isabelle/HOL session: