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\leftline{Mathematics 242 -- Principles of Analysis}
\leftline{Definitions Quiz 4 -- February 28, 2014}
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\leftline{Your Name: $\underline{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ }$}
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B) (5) Define: The sequence $\{x_n\}$ {\it converges} to $a \in {\bf R}$.
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A) (5)  Define: The function $f : A \to B$ is {\it one-to-one} (injective).  
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