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aleph-null

   Also found in: Wikipedia 0.02 sec.
a·leph-null  (älf-nl, -lf-)
n.
The first of the transfinite cardinal numbers. It corresponds to the number of elements in the set of positive integers. Also called aleph-zero.
aleph-null, aleph-zero
n
(Mathematics) the smallest infinite cardinal number; the cardinal number of the set of positive integers. Symbol א0
aleph-null  (älf-nl)
The first of the transfinite cardinal numbers, corresponding to the number of elements in the set of positive integers.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.aleph-null - the smallest infinite integer
aleph-nought, aleph-zero
large integer - an integer equal to or greater than ten


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But that first door remains open, and it's not a brand, and its true number is something like aleph-null.
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