Cardinal number
id:
cardinal-number-241-8773584
title:
Cardinal number
text:
In mathematics, a cardinal number, or cardinal for short, is what is commonly called the number of elements of a set. In the case of a finite set, its cardinal number, or cardinality is therefore a natural number. For dealing with the case of infinite sets, the infinite cardinal numbers have been introduced, which are often denoted with the Hebrew letter ℵ (aleph) marked with subscript indicating their rank among the infinite cardinals. Cardinality is defined in terms of bijective functions. Two
brand slug:
wiki
category slug:
encyclopedia
description:
Size of a possibly infinite set
original url:
https://en.wikipedia.org/wiki/Cardinal_number
date created:
date modified:
2024-04-27T01:08:47Z
main entity:
{"identifier":"Q163875","url":"https://www.wikidata.org/entity/Q163875"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/a/a5/Bijection.svg","width":200,"height":200}
fields total:
13
integrity:
15