Unordered pair
id:
unordered-pair-175-8835770
title:
Unordered pair
text:
In mathematics, an unordered pair or pair set is a set of the form {a, b}, i.e. a set having two elements a and b with no particular relation between them, where {a, b} = {b, a}. In contrast, an ordered pair (a, b) has a as its first element and b as its second element, which means (a, b) ≠ (b, a). While the two elements of an ordered pair (a, b) need not be distinct, modern authors only call {a, b} an unordered pair if a ≠ b.
But for a few authors a singleton is also considered an unordered pai
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Unordered_pair
date created:
2004-10-28T20:20:41Z
date modified:
2024-09-03T03:40:03Z
main entity:
{"identifier":"Q1477744","url":"https://www.wikidata.org/entity/Q1477744"}
image:
fields total:
13
integrity:
14