diff -r d5509912af18 -r c753196599f9 doc-src/TutorialI/Trie/document/Trie.tex
--- a/doc-src/TutorialI/Trie/document/Trie.tex	Tue Aug 29 11:52:47 2000 +0200
+++ b/doc-src/TutorialI/Trie/document/Trie.tex	Tue Aug 29 12:08:20 2000 +0200
@@ -1,4 +1,5 @@
-\begin{isabelle}%
+%
+\begin{isabellebody}%
 %
 \begin{isamarkuptext}%
 To minimize running time, each node of a trie should contain an array that maps
@@ -122,7 +123,7 @@
 solves the proof. Part~\ref{Isar} shows you how to write readable and stable
 proofs.%
 \end{isamarkuptext}%
-\end{isabelle}%
+\end{isabellebody}%
 %%% Local Variables:
 %%% mode: latex
 %%% TeX-master: "root"