diff -r 7e51c9f3d5a0 -r a5f86aed785b doc-src/TutorialI/Recdef/document/Induction.tex
--- a/doc-src/TutorialI/Recdef/document/Induction.tex	Tue Aug 29 15:13:10 2000 +0200
+++ b/doc-src/TutorialI/Recdef/document/Induction.tex	Tue Aug 29 15:43:29 2000 +0200
@@ -1,4 +1,5 @@
-\begin{isabelle}%
+%
+\begin{isabellebody}%
 %
 \begin{isamarkuptext}%
 Assuming we have defined our function such that Isabelle could prove
@@ -62,7 +63,7 @@
 empty list, the singleton list, and the list with at least two elements
 (in which case you may assume it holds for the tail of that list).%
 \end{isamarkuptext}%
-\end{isabelle}%
+\end{isabellebody}%
 %%% Local Variables:
 %%% mode: latex
 %%% TeX-master: "root"