🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtTürkçeРусскийالعربية한국어中文日本語EntityQ253214· pop 24· linked from 52 articlesHeine–Borel theoremtheorem about compact sets in Euclidean spaceConnectionsInternational Standard Book NumberEntityrational numberEntityCategoriesCompactness theoremsGeneral topologyProperties of topological spacesTheorems in real analysis