Home›Browse›기저🌐한국어EnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtРусскийفارسی한국어中文日本語EntityQ810214· pop 25· linked from 135 articles기저Sign in to saveAlso known as topological basis, topological base, basis모든 열린집합을 합집합을 통해 생성할 수 있는 열린집합들Available in 25 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoCatalanCroatianCzechEstonianFinnishHebrewHungarianNederlandsPolskiRomanianShow 6 moreSvenskaTiếng ViệtUkrainianzh_classicalفارسی한국어via Wikidata sitelinks · CC0