Empty set
id:
empty-set-217-4466125
title:
Empty set
text:
In mathematics, the empty set is the unique set having no elements; its size or cardinality is zero. Some axiomatic set theories ensure that the empty set exists by including an axiom of empty set, while in other theories, its existence can be deduced. Many possible properties of sets are vacuously true for the empty set. Any set other than the empty set is called non-empty. In some textbooks and popularizations, the empty set is referred to as the "null set". However, null set is a distinct not
brand slug:
wiki
category slug:
encyclopedia
description:
Mathematical set containing no elements
original url:
https://en.wikipedia.org/wiki/Empty_set
date created:
2001-07-13T19:21:14Z
date modified:
2024-09-13T08:54:56Z
main entity:
{"identifier":"Q226183","url":"https://www.wikidata.org/entity/Q226183"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/6/6a/Nullset.svg","width":126,"height":163}
fields total:
13
integrity:
16