%sw20obk6 {Book: TCI book style #6}{12pt}{tcibook}
%Copyright (C) 1994-95 TCI Software Research
\typeout{TCI Document Style `sw20obk6' <1 July 1994>.}
\typeout{NOTICE:  This macro file is NOT proprietary and may be 
freely copied and distributed.}
%
\input thmsupp.tex %TCI theorem option support
%
\trimwidth     8.5in  

%\textwidth     480pt
\addtolength{\textwidth}{90pt}

\marginparsep    0pt  \marginparwidth  0pt
\columnsep      14pt  \columnseprule 0pt 
\trimheight     11in  

%\topmargin      32pt
\addtolength{\topmargin}{12pt}

\headheight      0pt  \headsep         0pt
\footskip       20pt  \botmargin      32pt
\@mparswitchfalse     \@reversemargintrue

%\centerpagemargin
\addtolength{\oddsidemargin}{50pt}
\evensidemargin\oddsidemargin

\twocolumn

%\settextheight
\addtolength{\textheight}{163pt}

\c@secnumdepth\z@

\ps@footings\let\chaptermark\@gobble\let\sectionmark\@gobble
\def\ps@chapter{}%
\let\rulefooting\rulebelowfooting
\let\headcase\@empty
\def\rectomark{\@title}%
\def\versomark{\@title}%
\def\@title{}%

\def\@makechapterhead#1{%
 {\hrule height1.5pt\vskip4pt
  \centering
  \Huge\em
  \ifnum \c@secnumdepth >\m@ne \@chapapp{} \thechapter \quad \fi
  \uppercase{#1}\par 
  \vskip4pt\hrule height1.5pt
  }%
 \nobreak \vskip 18pt
 }
\let\introtext\@empty

\def\section{%
 \@startsection {section}{1}{\z@}{-24pt plus -1.2ex minus -.2ex}%
  {12pt}{\Large\sf\centering}%
 }%
\def\subsection{%
 \@startsection{subsection}{2}{\z@}{-24pt plus -1ex minus -.2ex}%
  {12pt}{\sf}%
 }%

\def\thefigure{\@arabic\c@figure}%