🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoРусский한국어日本語EntityQ751484· pop 10· linked from 108 articlesblock designset together with a family of subsets in mathAvailable in 10 languagesEspañolFrançaisDeutsch日本語РусскийItalianoHebrewUkrainian한국어via Wikidata sitelinks · CC0Connectionsdesign of experimentsEntityprojective linear groupEntityCategoriesCombinatorial designCombinatoricsDesign of experimentsFamilies of sets