--- a/doc-src/TutorialI/extra.sty Mon Aug 28 13:50:24 2000 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,29 +0,0 @@
-% extra.sty : Isabelle Manual extra macros for non-Springer version
-%
-\typeout{Document Style extra. Released 17/2/94, version of 22/8/00}
-
-\usepackage{ttbox}
-{\obeylines\gdef\ttbreak
-{\allowbreak}}
-
-%%Euro-style date: 20 September 1955
-\def\today{\number\day\space\ifcase\month\or
-January\or February\or March\or April\or May\or June\or
-July\or August\or September\or October\or November\or December\fi
-\space\number\year}
-
-%%%Put first chapter on odd page, with arabic numbering; like \cleardoublepage
-\newcommand\clearfirst{\clearpage\ifodd\c@page\else
- \hbox{}\newpage\if@twocolumn\hbox{}\newpage\fi\fi
- \pagenumbering{arabic}}
-
-%%%Ruled chapter headings
-\def\@rulehead#1{\hrule height1pt \vskip 14pt \Huge \bf
- #1 \vskip 14pt\hrule height1pt}
-\def\@makechapterhead#1{ { \parindent 0pt
- \ifnum\c@secnumdepth >\m@ne \raggedleft\large\bf\@chapapp{} \thechapter \par
- \vskip 20pt \fi \raggedright \@rulehead{#1} \par \nobreak \vskip 40pt } }
-
-\def\@makeschapterhead#1{ { \parindent 0pt \raggedright
- \@rulehead{#1} \par \nobreak \vskip 40pt } }
-