diff -r 23e743ac9cec -r 61272514e3b5 doc-src/TutorialI/Misc/document/Tree.tex
--- a/doc-src/TutorialI/Misc/document/Tree.tex	Thu Jan 09 11:45:40 2003 +0100
+++ b/doc-src/TutorialI/Misc/document/Tree.tex	Wed Jan 15 16:43:12 2003 +0100
@@ -18,7 +18,8 @@
 by swapping subtrees recursively. Prove%
 \end{isamarkuptext}%
 \isamarkuptrue%
-\isacommand{lemma}\ mirror{\isacharunderscore}mirror{\isacharcolon}\ {\isachardoublequote}mirror{\isacharparenleft}mirror\ t{\isacharparenright}\ {\isacharequal}\ t{\isachardoublequote}\isamarkupfalse%
+\isacommand{lemma}\ mirror{\isacharunderscore}mirror{\isacharcolon}\ {\isachardoublequote}mirror{\isacharparenleft}mirror\ t{\isacharparenright}\ {\isacharequal}\ t{\isachardoublequote}\isanewline
+\isamarkupfalse%
 \isamarkupfalse%
 \isamarkupfalse%
 \isamarkupfalse%
@@ -30,10 +31,10 @@
 by traversing it in infix order. Prove%
 \end{isamarkuptext}%
 \isamarkuptrue%
-\isacommand{lemma}\ {\isachardoublequote}flatten{\isacharparenleft}mirror\ t{\isacharparenright}\ {\isacharequal}\ rev{\isacharparenleft}flatten\ t{\isacharparenright}{\isachardoublequote}\isamarkupfalse%
+\isacommand{lemma}\ {\isachardoublequote}flatten{\isacharparenleft}mirror\ t{\isacharparenright}\ {\isacharequal}\ rev{\isacharparenleft}flatten\ t{\isacharparenright}{\isachardoublequote}\isanewline
 \isamarkupfalse%
 \isamarkupfalse%
-\isanewline
+\isamarkupfalse%
 \isamarkupfalse%
 \end{isabellebody}%
 %%% Local Variables: