集合与函数 Flashcards by Ho Jim | Brainscape

Q

空集与含有空集的集合

A

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Q

集合的幂集

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Q

单射、满射、双射

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Q

上取整、下取整函数

A

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Q

函数合成的证明

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Q

在f非单射，g非漫射的情况下，f。g合成仍有可能是双射

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Q

幂集易错题

A

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