🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaРусскийفارسی한국어中文日本語EntityQ1071795· pop 18· linked from 116 articlesnormal spaceAlso known as T4 spacetopological space in which every pair of disjoint closed sets has disjoint open neighborhoodsAvailable in 18 languagesEspañolFrançaisDeutsch中文РусскийPortuguêsItalianoEsperantoFinnishGalicianHebrewConnectionsparacompact spaceEntityseparated setsEntityCategoriesProperties of topological spacesSeparation axioms