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From: geyer@galton.uchicago.edu
Newsgroups: comp.text.tex
Subject: Re: Latex questions regarding theorems, \newtheorem
Message-ID: <1991Jun14.024242.6256@midway.uchicago.edu>
Date: 14 Jun 91 02:42:42 GMT
Sender: news@midway.uchicago.edu (NewsMistress)
Organization: University of Chicago
Lines: 30


In article <gordon.676703279@ningaui> gordon@cs.uwa.oz.au (Gordon Royle) writes:

> I do not like having all the theorems typeset in italics. I
> would like to change the "theorem-like environment" so that the theorems
> are typeset in slanted type.
> The LaTeX book does not mention at all how to do it, or in fact where
> the "theorem-like environment" is defined....

I'll take this one because its so easy.  It is defined in latex.tex, where
under the heading THEOREM ENVIRONMENTS are defined (the only macros in this
section containing \it)

  \def\@begintheorem#1#2{\it \trivlist \item[\hskip \labelsep{\bf #1\ #2}]}
  \def\@opargbegintheorem#1#2#3{\it \trivlist
        \item[\hskip \labelsep{\bf #1\ #2\ (#3)}]}

redefine them without the \it and you're in business.  Since these macro
names contain a @ they can only be redefined in a style file.  Make your
own, say foo.sty, and then add it to the list in /documentstyle, e. g.,

  \documentstyle[12pt,foo]{article}

This is a good easy example of how to hack style files.  Often you don't
have to understand much about how LaTeX works to make the required changes.

Charles Geyer
Department of Statistics
University of Chicago
geyer@galton.uchicago.edu