Empty set/Definition: Difference between revisions

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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 14:01, 10 November 2008 (view source) imported>Richard Pinch (new entry, just a placeholder really)		Latest revision as of 00:06, 19 February 2009 (view source) imported>Chris Day No edit summary
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	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.		<noinclude>{{subpages}}</noinclude>
			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.