🌐EnglishEnglishDeutschEspañolFrançaisItalianoPolskiPortuguêsРусскийفارسی한국어中文日本語EntityQ671944· pop 17· linked from 391 articlestransitive setin set theory, a set whose elements are all subsetsAvailable in 17 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoCzechEstonianGreekConnectionssemantic theory of truthEntitymathematical logicEntityCategoriesSet theory