%% 
%%  Ein DANTE-Edition Beispiel
%% 
%%  Beispiel 04-07-1 auf Seite 91.
%% 
%%  Copyright (C) 2010 Voss
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 

% Show page(s) 3,6

\PassOptionsToClass{}{beamer}
\documentclass{beamer}



\usetheme{Malmoe}


\begin{document}
\begin{frame}{Overlay-Umgebung}
\begin{theorem}<1->[Pythagoras]
    \[ c^2 = a^2 + b^2 \]
\end{theorem}
\begin{proof}<2>
    \[ 25=16+9 \]
\end{proof}
\begin{example}<3>[Derivation]
 \begin{align}
   f(x) &= \tan x\\f^\prime &= 1+\tan^2 x
 \end{align}
\end{example}
\end{frame}

\begin{frame}{Overlay-Umgebung}
\begin{theorem}<1->[Pythagoras]
    \[ c^2 = b^2 + a^2 \]
\end{theorem}
\begin{onlyenv}<2>
\begin{proof}
    \[ 25=16+9 \]
\end{proof}
\end{onlyenv}
\empty
\begin{example}<3>[Derivation]
 \begin{align}
   f(x) &= \tan x\\f^\prime &= 1+\tan^2 x
 \end{align}
\end{example}
\end{frame}
\end{document}
