diff -r 9be481b4bc85 -r 699de91b15e2 doc-src/TutorialI/Misc/document/case_splits.tex
--- a/doc-src/TutorialI/Misc/document/case_splits.tex	Tue Aug 29 00:57:24 2000 +0200
+++ b/doc-src/TutorialI/Misc/document/case_splits.tex	Tue Aug 29 11:52:16 2000 +0200
@@ -1,4 +1,5 @@
-\begin{isabelle}%
+%
+\begin{isabellebody}%
 %
 \begin{isamarkuptext}%
 Goals containing \isaindex{if}-expressions are usually proved by case
@@ -64,7 +65,7 @@
 or globally:%
 \end{isamarkuptext}%
 \isacommand{lemmas}\ {\isacharbrackleft}split\ del{\isacharbrackright}\ {\isacharequal}\ list{\isachardot}split\isanewline
-\end{isabelle}%
+\end{isabellebody}%
 %%% Local Variables:
 %%% mode: latex
 %%% TeX-master: "root"