- the smallest infinite cardinal number; the cardinal number of the set of positive integers
| 单词 | aleph-null |
| 释义 | WordReference Random House Unabridged Dictionary of American English © 2024 a•leph-null (ä′lif nul′),USA pronunciation n. [Math.]
Collins Concise English Dictionary © HarperCollins Publishers:: aleph-null, aleph-zero n
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