--- a/doc-src/TutorialI/Misc/document/Itrev.tex Tue Aug 29 00:57:24 2000 +0200
+++ b/doc-src/TutorialI/Misc/document/Itrev.tex Tue Aug 29 11:52:16 2000 +0200
@@ -1,4 +1,5 @@
-\begin{isabelle}%
+%
+\begin{isabellebody}%
%
\begin{isamarkuptext}%
Function \isa{rev} has quadratic worst-case running time
@@ -88,7 +89,7 @@
will need to be creative. Additionally, you can read \S\ref{sec:advanced-ind}
to learn about some advanced techniques for inductive proofs.%
\end{isamarkuptxt}%
-\end{isabelle}%
+\end{isabellebody}%
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