へいしゅうごう
閉集合
1. closed setMathematics
2. Closed setIn geometry, topology, and related branches of mathematics, a closed set is a set whose complement is an open set. In a topological space, a closed set can be defined as a set which contains all its limit points. In a metric space, a closed set is a set which is closed under the limit operation.
Read “Closed set” on English Wikipedia
Read “閉集合” on Japanese Wikipedia
Read “Closed set” on DBpedia
Read “Closed set” on English Wikipedia
Read “閉集合” on Japanese Wikipedia
Read “Closed set” on DBpedia
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