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Difference between revisions of "Aleph-zero"

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A [[Cardinal number|cardinal number]] which is the cardinality of all countably-infinite sets. Denoted by $\aleph_0$.
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A [[cardinal number]] which is the cardinality of all countably-infinite sets (cf [[Countable set]]). Denoted by $\aleph_0$.

Latest revision as of 20:19, 22 December 2014

2020 Mathematics Subject Classification: Primary: 03E10 [MSN][ZBL]

A cardinal number which is the cardinality of all countably-infinite sets (cf Countable set). Denoted by $\aleph_0$.

How to Cite This Entry:
Aleph-zero. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Aleph-zero&oldid=35818
This article was adapted from an original article by P.S. Aleksandrov (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article