Math & Science ⇒ amsthm example covered with box

[libor]

Hello,

I would like to ask you following question:

I would like to have example covered with box. I am using amsthm package, but inserting its example definition into \framebox is not possible. Do you know some way how to do this?

Thanks a lot.
Libor

[gmedina]

Hi,

you can use the ntheorem package instead of amsthm. There's a predefined framed theorem style if the heading and the body of the example should be boxed. If only the heading should be boxed, then you could easily define a new theorem style:

Code: Select all

\documentclass{article}
\usepackage{ntheorem}

\makeatletter
\newtheoremstyle{myframe}%
  {\item[\rlap{\vbox{\hbox{\hskip\labelsep \theorem@headerfont
    \fbox{##1\ ##2}\theorem@separator}\hbox{\strut}}}]\normalfont}%
  {\item[\rlap{\vbox{\hbox{\hskip\labelsep \theorem@headerfont
    \fbox{##1\ ##2\ (##3)}\theorem@separator}\hbox{\strut}}}]\normalfont}
\makeatother

\theoremstyle{myframe}
\newtheorem{exam}{Example}

\begin{document}

\begin{exam}
Test
\end{exam}

\end{document}