Empty set/Definition: Difference between revisions
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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. | 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. | ||
Revision as of 01:03, 19 February 2009
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Empty set [r]: In set theory, the empty set is a set without elements, usually denoted or . The empty set is a subset of any set.
