diff -r d5509912af18 -r c753196599f9 doc-src/TutorialI/Recdef/document/simplification.tex
--- a/doc-src/TutorialI/Recdef/document/simplification.tex	Tue Aug 29 11:52:47 2000 +0200
+++ b/doc-src/TutorialI/Recdef/document/simplification.tex	Tue Aug 29 12:08:20 2000 +0200
@@ -1,4 +1,5 @@
-\begin{isabelle}%
+%
+\begin{isabellebody}%
 %
 \begin{isamarkuptext}%
 Once we have succeeded in proving all termination conditions, the recursion
@@ -100,7 +101,7 @@
 after which we can disable the original simplification rule:%
 \end{isamarkuptext}%
 \isacommand{lemmas}\ {\isacharbrackleft}simp\ del{\isacharbrackright}\ {\isacharequal}\ gcd{\isachardot}simps\isanewline
-\end{isabelle}%
+\end{isabellebody}%
 %%% Local Variables:
 %%% mode: latex
 %%% TeX-master: "root"