🌐فارسیEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtTürkçeРусскийالعربيةفارسیไทย한국어中文日本語EntityQ217594· pop 33· linked from 553 articlesردهAlso known as class (set theory)mathematical collection of sets that can be defined based on a property of its members (set theory)Available in 33 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoArmenianBahasa IndonesiaConnectionscategoryEntitysemantic theory of truthEntityCategoriesSet theory