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\leftline{Mathematics 242 -- Principles of Analysis}
\leftline{Definitions Quiz 2 -- September 17, 2004}
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\leftline{Your Name: $\underline{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ }$}
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\item{1.}  What does it mean to say that a function $f: A \to B$ is 
{\it surjective}?
\vglue 3truein
\item{2.}  What does it mean for a set to be {\it denumerable}?
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