🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtTürkçeРусскийالعربيةفارسی한국어中文日本語EntityQ1491995· pop 33· linked from 598 articlesconnected spacetopological space that cannot be written as the disjoint union of two nonempty open subsetsAvailable in 32 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةBahasa IndonesiaCatalanConnectionsopen setEntitysubspace topologyEntityCategoriesGeneral topologyProperties of topological spaces