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\signature{William A. Stein\\
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Associate Professor of Mathematics\\
University of Washington, Seattle\\
{\tt wstein@gmail.com}\\
{\tt http://wstein.org}\\
{\tt http://sagemath.org}\\
206-419-0925
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}

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\begin{letter}{
Barbara Thompson\\
Office of Research\\
Box 351202, 616-9089\\
FAX 685-9210\\
{\tt bthompso@u.washington.edu}
}{}
\opening{Dear Barbara,}

This is a statement that my RRF award during Fall 2009 does not
directly overlap funding that I am receiving from other sources.

\closing{Best regards,}
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