最終更新日：2025/11/19

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A number used to denote quantity; a counting number; a cardinal. / (mathematics) A generalized kind of number used to denote the size of a set, including infinite sets.

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cardinal number

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元となった辞書の項目

cardinal number

名詞

A number used to denote quantity; a counting number; a cardinal. / (mathematics) A generalized kind of number used to denote the size of a set, including infinite sets.

日本語の意味

数量を示す数、すなわち物の個数を数えるための数 / （数学において）集合の大きさを示す数、有限集合および無限集合のサイズを表す数

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When writing the report, make sure to use a cardinal number to specify the exact quantity.

Google翻訳 / DeepL翻訳

報告書を書くときは、正確な数量を示す数（基数）を必ず使ってください。

詳細

意味（1）

A number used to denote quantity; a counting number; a cardinal.

The smallest cardinal numbers are 0, 1, 2, and 3.

Google翻訳 / DeepL翻訳

詳細

意味（2）

(mathematics) A generalized kind of number used to denote the size of a set, including infinite sets.

This cardinal number is the smallest of the infinite cardinal numbers; it is the one to which Cantor has appropriated the Hebrew Aleph with the suffix 0, to distinguish it from larger infinite cardinals. Thus the name of the smallest of infinite cardinals is ℵ₀.

Google翻訳 / DeepL翻訳