bul: Теория на множествата

Information
has URI	http://lexvo.org/id/term/bul/%D0%A2%D0%B5%D0%BE%D1%80%D0%B8%D1%8F%20%D0%BD%D0%B0%20%D0%BC%D0%BD%D0%BE%D0%B6%D0%B5%D1%81%D1%82%D0%B2%D0%B0%D1%82%D0%B0

Meaning
means	(noun) the branch of pure mathematics that deals with the nature and relations of sets set theory