Home›Browse›T1 space🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaРусскийفارسی한국어中文日本語EntityQ284347· pop 16· linked from 98 articlesT1 spaceSign in to saveAlso known as T₁ spacetopological space in which all singleton sets are closedAvailable in 16 languagesEspañolFrançaisDeutsch中文日本語PortuguêsItalianoCatalanGalicianNederlandsPolskiSvenskaUkrainianفارسی한국어via Wikidata sitelinks · CC0