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first category |
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first category [′fərst ′kad·ə‚gȯr·ē] (mathematics) A set is of first category if it is a countable union of nowhere dense sets. A setSis of first category at a pointxif there is a neighborhood ofxwhose intersection withSis of first category. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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