Empty set/Definition: Difference between revisions

Latest revision as of 00:06, 19 February 2009

This article contains just a definition and optionally other subpages (such as a list of related articles), but no metadata. Create the metadata page if you want to expand this into a full article.

Empty set [r]: In set theory, this is a set without elements, usually denoted $\{~\}$ or $\emptyset$ . The empty set is a subset of any set.

Revision as of 00:04, 19 February 2009 (view source) imported>Chris Day m (Empty set moved to Empty set/Definition) ← Older edit		Latest revision as of 00:06, 19 February 2009 (view source) imported>Chris Day No edit summary
(One intermediate revision by the same user not shown)
Line 1:		Line 1:
	{{subpages}}		<noinclude>{{subpages}}</noinclude>
	In [[set theory]], ~~the '''empty set'''~~ is a set without elements, usually denoted <math>\{~\}</math> or <math>\empty</math>. The empty set is a [[subset]] of any set.		In set theory, this is a set without elements, usually denoted <math>\{~\}</math> or <math>\empty</math>. The empty set is a [[subset]] of any set.