最終更新日：2024/07/28

(set theory) The first of the transfinite cardinal numbers; corresponds to the number of natural numbers.

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aleph-null

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aleph-null

name

(set theory) The first of the transfinite cardinal numbers; corresponds to the number of natural numbers.

Aleph-null is a name used to describe the cardinality of countable infinite sets.

意味（1）

(set theory) The first of the transfinite cardinal numbers; corresponds to the number of natural numbers.