Closed set/Definition: Difference between revisions
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imported>Jitse Niesen (The complement of an open set.) |
imported>Peter Schmitt (Unfortunately, the boundary can be empty.) |
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In geometry and topology, a set that contains all its [[boundary point]]s; the complement of an [[open set]]. | |||
Revision as of 19:15, 30 September 2009
In geometry and topology, a set that contains all its boundary points; the complement of an open set.