Source

beamer / base / beamerbasetheorems.sty

\ProvidesPackageRCS $Header$

% Copyright 2003 by Till Tantau <tantau@users.sourceforge.net>.
%
% This program can be redistributed and/or modified under the terms
% of the GNU Public License, version 2.


\mode
<all>

\IfFileExists{translator.sty}{\RequirePackage{translator}}{}
\providecommand\translation[2][]{#2}


\mode
<presentation>

\ifbeamer@ams

\RequirePackage{amsmath}
\RequirePackage{amsthm}

% For old versions of amsthm
\providecommand\thm@space@setup{}
\providecommand\pushQED[1]{\def\beamer@qed{#1}}
\providecommand\popQED{\beamer@qed}
\providecommand\qedhere{\qed}

% Redfine certain amsthm internals:
\def\@thm#1#2#3{%
  \ifhmode\unskip\unskip\par\fi
  \normalfont
  \let\thmheadnl\relax
  \let\thm@swap\@gobble
  \thm@headpunct{.}% add period after heading
  \thm@space@setup
  #1% style overrides
  \def\inserttheoremname{#3}
  \def\inserttheorempunctuation{\the\thm@headpunct}
  \def\@tempa{#2}%
  \ifx\@empty\@tempa
    \def\inserttheoremnumber{}
  \else
    \refstepcounter{#2}%
    \expandafter\def\expandafter\inserttheoremnumber\expandafter{ \csname the#2\endcsname}
  \fi
  \beamer@begintheorem%
}

\let\beamer@origxthm=\@xthm
\def\@xthm#1{\resetcounteronoverlays{#1}\beamer@origxthm{#1}}

\def\inserttheoremheadfont{\the\thm@headfont}
\def\inserttheoremblockenv{block}

\def\th@example{%
  \normalfont % body font
  \def\inserttheoremblockenv{exampleblock}  
}

\newcommand<>\beamer@begintheorem[1][]{%
  \beamer@ifempty{#1}
  {\def\inserttheoremaddition{}}
  {\def\inserttheoremaddition{#1}}
  \usebeamertemplate{theorem begin}#2}
\def\@endtheorem{\usebeamertemplate{theorem end}}

\renewenvironment<>{proof}[1][\proofname]{%
  \par
  \def\insertproofname{#1\@addpunct{.}}%
  \pushQED{\qed}
  \usebeamertemplate{proof begin}#2}
{\popQED\usebeamertemplate{proof end}}

\fi

\def\qedsymbol{\leavevmode\hbox{\usebeamertemplate*{qed symbol}}}


\mode
<article>
{
  \ifbeamer@ams
    \RequirePackage{amsmath}
    \RequirePackage{amsthm}

    \renewenvironment<>{proof}[1][\proofname]
    {\begin{actionenv}#2\begin{originalproof}[#1]}{\end{originalproof}\end{actionenv}}

    % Make new theorem overlay-specification-aware
    \let\beamer@origthm=\@thm
    \def\@thm#1#2#3{\def\beamer@store{{#1}{#2}{#3}}\beamer@readspec}
    \newcommand<>\beamer@readspec[1][]{\def\beamer@storeaction{\begin{actionenv}#2}%
      \expandafter\beamer@origthm\beamer@store[#1]}

    \let\beamer@origbegintheorem=\@begintheorem
    \def\@begintheorem{\beamer@storeaction\beamer@origbegintheorem}

    \let\beamer@origendtheorem=\@endtheorem
    \def\@endtheorem{\beamer@origendtheorem\end{actionenv}}
  \fi

  \def\th@example{\th@remark}

  \newcommand{\ExampleInline}[1]{\translation{Example}: \ignorespaces#1}

  \newcommand{\BeispielInline}[1]{Beispiel: \ignorespaces#1}
}

\mode
<all>
{
  \ifbeamer@blocks
    \ifbeamer@countsect
      \newtheorem{theorem}{\translation{Theorem}}[section]
    \else
      \newtheorem{theorem}{\translation{Theorem}}
    \fi
    \newtheorem{corollary}[theorem]{\translation{Corollary}}
    \newtheorem{fact}[theorem]{\translation{Fact}}
    \newtheorem{lemma}[theorem]{\translation{Lemma}}
    \newtheorem{problem}[theorem]{\translation{Problem}}
    \newtheorem{solution}[theorem]{\translation{Solution}}

    \theoremstyle{definition}
    \newtheorem{definition}[theorem]{\translation{Definition}}
    \newtheorem{definitions}[theorem]{\translation{Definitions}}
    
    \theoremstyle{example}
    \newtheorem{example}[theorem]{\translation{Example}}
    \newtheorem{examples}[theorem]{\translation{Examples}}

    
    % Compatibility
    \newtheorem{Beispiel}[theorem]{Beispiel}
    \newtheorem{Beispiele}[theorem]{Beispiele}
    \theoremstyle{plain}
    \newtheorem{Loesung}[theorem]{L\"osung}
    \newtheorem{Satz}[theorem]{Satz}
    \newtheorem{Folgerung}[theorem]{Folgerung}
    \newtheorem{Fakt}[theorem]{Fakt}
    \newenvironment{Beweis}{\begin{proof}[Beweis.]}{\end{proof}}
    \newenvironment{Lemma}{\begin{lemma}}{\end{lemma}}
    \newenvironment{Proof}{\begin{proof}}{\end{proof}}
    \newenvironment{Theorem}{\begin{theorem}}{\end{theorem}}
    \newenvironment{Problem}{\begin{problem}}{\end{problem}}
    \newenvironment{Corollary}{\begin{corollary}}{\end{corollary}}
    \newenvironment{Example}{\begin{example}}{\end{example}}
    \newenvironment{Examples}{\begin{examples}}{\end{examples}}
    \newenvironment{Definition}{\begin{definition}}{\end{definition}}
  \fi
}

\mode
<all>
% End in common mode


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