diff -r 2c208c98f541 -r 1b2d4f995b13 doc-src/TutorialI/Misc/document/Tree2.tex
--- a/doc-src/TutorialI/Misc/document/Tree2.tex	Mon Aug 21 19:03:58 2000 +0200
+++ b/doc-src/TutorialI/Misc/document/Tree2.tex	Mon Aug 21 19:17:07 2000 +0200
@@ -7,11 +7,11 @@
 A linear time version of \isa{flatten} again reqires an extra
 argument, the accumulator:%
 \end{isamarkuptext}%
-\isacommand{consts}\ flatten2\ ::\ {"}'a\ tree\ =>\ 'a\ list\ =>\ 'a\ list{"}%
+\isacommand{consts}\ flatten\isadigit{2}\ {\isacharcolon}{\isacharcolon}\ {\isachardoublequote}{\isacharprime}a\ tree\ {\isacharequal}{\isachargreater}\ {\isacharprime}a\ list\ {\isacharequal}{\isachargreater}\ {\isacharprime}a\ list{\isachardoublequote}%
 \begin{isamarkuptext}%
 \noindent Define \isa{flatten2} and prove%
 \end{isamarkuptext}%
-\isacommand{lemma}\ {"}flatten2\ t\ []\ =\ flatten\ t{"}\end{isabelle}%
+\isacommand{lemma}\ {\isachardoublequote}flatten\isadigit{2}\ t\ {\isacharbrackleft}{\isacharbrackright}\ {\isacharequal}\ flatten\ t{\isachardoublequote}\end{isabelle}%
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