Cardinality
id:
cardinality-162-6360463
title:
Cardinality
text:
In mathematics, cardinality describes a relationship between sets which compares their relative size. For example, the sets A = { 1, 2, 3 } and B = { 2, 4, 6 } are the same size as they each contain 3 elements. Beginning in the late 19th century, this concept was generalized to infinite sets, which allows one to distinguish between different types of infinity, and to perform arithmetic on them. There are two notions often used when referring to cardinality: one which compares sets directly using
brand slug:
wiki
category slug:
encyclopedia
description:
Definition of the number of elements in a set
original url:
https://en.wikipedia.org/wiki/Cardinality
date created:
2001-08-21T20:04:33Z
date modified:
2024-08-27T17:06:54Z
main entity:
{"identifier":"Q4049983","url":"https://www.wikidata.org/entity/Q4049983"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/7/77/Platonic_Solids_Transparent.svg","width":496,"height":404}
fields total:
13
integrity:
16