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EntityQ66707394· pop 46· linked from 890 articles

可算集合

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Also known as at most countable set, enumerable set

自然数の部分集合と同じ濃度を持つ集合

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Subclass of: set

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less than: uncountable set
different from: countably infinite set
Commons category: Countable sets
maintained by WikiProject: WikiProject Mathematics
studied by: set theory

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