diff -r ec7dae620736 -r 713629c2b73c src/HOL/ex/document/root.tex
--- a/src/HOL/ex/document/root.tex	Sun Feb 09 17:21:03 2014 +0100
+++ b/src/HOL/ex/document/root.tex	Sun Feb 09 17:41:17 2014 +0100
@@ -1,6 +1,3 @@
-
-% $Id$
-
 \documentclass[11pt,a4paper]{article}
 \usepackage{isabelle,isabellesym}
 \usepackage[utf8]{inputenc}