% This text is proprietary.
% It's a part of presentation made by myself.
% It may not used commercial.
% The noncommercial use such as private and study is free
% Dec 2007
% Author: Sascha Frank 
% University Freiburg 
% www.informatik.uni-freiburg.de/~frank/
%
% 
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\begin{document}

\title{Analysis on ...}
\author[Fatemeh Akhtari]{Fatemeh Akhtari\\[4mm]{\tiny Supervisor}\\[4mm] ...}
\begin{frame}
 \titlepage
\end{frame}

\section{Section 1}

\begin{frame}\frametitle{blocs}

\begin{alertblock}{Definition}
Let $\cal S$ be a set with a symmetric and antireflexive ....
\end{alertblock}

\begin{exampleblock}{Problem}
Let $\cal S$ be a set with a symmetric and antireflexive ....
\end{exampleblock}
\begin{block}{title of the bloc}
bloc text
\end{block}

\begin{exampleblock}{title of the bloc}
bloc text
\end{exampleblock}

\begin{alertblock}{title of the bloc}
bloc text
\end{alertblock}
\end{frame}

\end{document}