doc-src/TutorialI/isabelle.sty

--- a/doc-src/TutorialI/isabelle.sty	Tue Sep 26 18:15:21 2000 +0200
+++ b/doc-src/TutorialI/isabelle.sty	Tue Sep 26 18:23:29 2000 +0200
@@ -131,6 +131,7 @@
 \renewcommand{\isacharbraceleft}{\emph{$\{$}}%
 \renewcommand{\isacharbar}{\emph{$\mid$}}%
 \renewcommand{\isacharbraceright}{\emph{$\}$}}%
+\renewcommand{\isachartilde}{\emph{${}^\sim$}}%
 }
 
 \newcommand{\isabellestylesl}{%