diff -r 3b7b72db57f1 -r 7e51c9f3d5a0 doc-src/TutorialI/Ifexpr/document/Ifexpr.tex
--- a/doc-src/TutorialI/Ifexpr/document/Ifexpr.tex	Tue Aug 29 12:28:48 2000 +0200
+++ b/doc-src/TutorialI/Ifexpr/document/Ifexpr.tex	Tue Aug 29 15:13:10 2000 +0200
@@ -1,5 +1,4 @@
-%
-\begin{isabellebody}%
+\begin{isabelle}%
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 \begin{isamarkuptext}%
 \subsubsection{How can we model boolean expressions?}
@@ -132,7 +131,7 @@
 and prove \isa{normal(norm b)}. Of course, this requires a lemma about
 normality of \isa{normif}:%
 \end{isamarkuptext}%
-\isacommand{lemma}{\isacharbrackleft}simp{\isacharbrackright}{\isacharcolon}\ {\isachardoublequote}{\isasymforall}t\ e{\isachardot}\ normal{\isacharparenleft}normif\ b\ t\ e{\isacharparenright}\ {\isacharequal}\ {\isacharparenleft}normal\ t\ {\isasymand}\ normal\ e{\isacharparenright}{\isachardoublequote}\end{isabellebody}%
+\isacommand{lemma}{\isacharbrackleft}simp{\isacharbrackright}{\isacharcolon}\ {\isachardoublequote}{\isasymforall}t\ e{\isachardot}\ normal{\isacharparenleft}normif\ b\ t\ e{\isacharparenright}\ {\isacharequal}\ {\isacharparenleft}normal\ t\ {\isasymand}\ normal\ e{\isacharparenright}{\isachardoublequote}\end{isabelle}%
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