diff -r 494f8cd34df7 -r 44fefb6e9994 doc-src/TutorialI/Misc/fakenat.thy
--- a/doc-src/TutorialI/Misc/fakenat.thy	Wed Aug 02 11:30:38 2000 +0200
+++ b/doc-src/TutorialI/Misc/fakenat.thy	Wed Aug 02 13:17:11 2000 +0200
@@ -3,8 +3,8 @@
 (*>*)
 
 text{*\noindent
-The type \isaindexbold{nat} of natural numbers is predefined and
-behaves like
+The type \isaindexbold{nat}\index{*0|bold}\index{*Suc|bold} of natural
+numbers is predefined and behaves like
 *}
 
 datatype nat = "0" | Suc nat