🌐EnglishEnglishDeutschFrançaisPortuguêsTiếng ViệtTürkçeРусский한국어中文日本語EntityQ1632433· pop 10· linked from 23 articlesHelly's theoremtheorem about the intersections of d-dimensional convex setsAvailable in 10 languagesFrançaisDeutsch日本語РусскийPortuguêsCzechTiếng ViệtUkrainian한국어via Wikidata sitelinks · CC0Connectionscompact spaceEntityInternational Standard Book NumberEntityCategoriesGeometric transversal theoryTheorems in convex geometryTheorems in discrete geometry