diff -r bdd17e7b5bd9 -r fc3a60549075 doc-src/TutorialI/Documents/Documents.thy
--- a/doc-src/TutorialI/Documents/Documents.thy	Tue Jan 15 21:09:01 2002 +0100
+++ b/doc-src/TutorialI/Documents/Documents.thy	Tue Jan 15 21:09:31 2002 +0100
@@ -737,7 +737,7 @@
   comments \verb,(,\verb,*,\verb,<,\verb,*,\verb,), and
   \verb,(,\verb,*,\verb,>,\verb,*,\verb,), tells the document
   preparation system to suppress these parts; the formal checking of
-  the theory is unchanged.
+  the theory is unchanged, of course.
 
   In this example, we hide a theory's \isakeyword{theory} and
   \isakeyword{end} brackets: