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\begin{document}
\begin{frame}{\hspace*{.18in} All (dually) nonisomorphic lattices with $\le 7$ elements}

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 \rput[t](0,-0.5){\scriptsize$K_{7,3}$}
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\ \quad
%23
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 \rput[t](0.25,-0.5){\scriptsize$K_{7,4}$}
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\ \quad
%24
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 \rput[t](0,-0.5){\scriptsize$K_{7,5}$}
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\ \quad
%25
\pspicture(-1,-1)(1,5)
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 \rput[t](0,-0.5){\scriptsize$K_{7,6}$}
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\ \quad
%26
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 \rput[t](0,-0.5){\scriptsize$K_{7,7}$}
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\ \quad
%27
\pspicture(-0.5,-1)(0.5,5)
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 \rput[t](0,-0.5){\scriptsize$K_{7,8}$}
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\ \quad
%28
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 \rput[t](0,-0.5){\scriptsize$K_{7,9}$}
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\ \quad
%29
\pspicture(-1,-1)(1,5)
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\ \quad
%30
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 \rput[t](0,-0.5){\scriptsize$K_{7,11}$}
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\ \quad
%31
\pspicture(-0.5,-1)(0.5,6)
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\ \quad
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\end{center}
%}

\begin{center}\tiny 
Lattices --- 
Math Poster 2009 --- Peter Jipsen --- Chapman University --- math.chapman.edu
\end{center}

\end{frame}
\end{document}
