閉包 (位相空間論)
1. Closure (topology)In mathematics, the closure of a subset S in a topological space consists of all points in S plus the limit points of S. Intuitively, these are all the points that are "near" S. A point which is in the closure of S is a point of closure of S. The notion of closure is in many ways dual to the notion of interior.
Read “Closure (topology)” on English Wikipedia
Read “閉包 (位相空間論)” on Japanese Wikipedia
Read “Closure (topology)” on DBpedia
Read “Closure (topology)” on English Wikipedia
Read “閉包 (位相空間論)” on Japanese Wikipedia
Read “Closure (topology)” on DBpedia
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