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Uncountable

Revision as of 02:02, 29 June 2006 by ComplexZeta (talk | contribs)
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A set $S$ is said to be uncountable if there is no injection $f:S\to\mathbb{Z}$. A well-known example of an uncountable set is the set of real numbers $\mathbb{R}$.

(Someone should give the proof that $\mathbb{R}$ is uncountable.)

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