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Paranormal space : ウィキペディア英語版 | Paranormal space
In mathematics, in the realm of topology, a paranormal space is a topological space in which every countable discrete collection of closed sets has a locally finite open expansion. ==See also==
* Normal space – a topological space in which every two disjoint closed sets have disjoint open neighborhoods * Paracompact space – a topological space in which every open cover admits an open locally finite refinement
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Paranormal space」の詳細全文を読む
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