Last Updated
：2025/11/20
transfinite number
Noun
Japanese Meaning
（集合論において）有限な自然数よりも大きい基数または序数の数。通常、ヘブライ文字のアレフ記号（ℵ）と下付き数字によって表される。
（ plural ）
Quizzes for review
(set theory) Any cardinal or ordinal number which is larger than any finite, i.e. natural number; often represented by the Hebrew letter aleph (ℵ) with a subscript 0, 1, etc.
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Cantor showed that the set of all countable ordinals cannot be measured by a single transfinite number.
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Cantor showed that the set of all countable ordinals cannot be measured by a single transfinite number.
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