🌐EnglishEnglishDeutschEspañolNederlandsPolskiРусский中文日本語EntityQ2208651· pop 5· linked from 30 articlestransversalset containing exactly one element from each member of a family of setsAvailable in 5 languagesEspañolDeutschРусскийPolskivia Wikidata sitelinks · CC0Connectionsequivalence classEntitymathematicsEntityCategoriesCombinatoricsFamilies of setsGroup theory