bn:03243104n
Noun Concept
Categories: General topology
EN
closed set  closed  closed sets  closed subset
EN
In geometry, topology, and related branches of mathematics, a closed set is a set whose complement is an open set. Wikipedia
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EN
In geometry, topology, and related branches of mathematics, a closed set is a set whose complement is an open set. Wikipedia
A set which contains all its limit points Wikipedia Disambiguation
Set whose complement is an open set Wikidata
A set whose complement is open. Wiktionary
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