Last Updated
：2025/11/22
countably infinite
Adjective
not-comparable
of a set
Japanese Meaning
可算無限：数え上げ可能な無限集合、すなわち自然数全体と同じ濃度（カーディナリティ）を持つ集合 / 自然数集合 ℕ と一対一に対応可能な無限集合 / 順序を付けて数えることができる無限集合
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(set theory, of a set) That is both countable and infinite; having the same cardinality as the set of natural numbers; formally, such that a bijection exists from ℕ to the set.
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countably infinite
The mathematician explained that the set of all prime numbers is countably infinite, even though its pattern is not fully understood.
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The mathematician explained that the set of all prime numbers is countably infinite, even though its pattern is not fully understood.
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