Alternative set theory

Generically, an alternative set theory is an alternative mathematical approach to the concept of set. It is a proposed alternative to the standard set theory. Some of the alternative set theories are: * the theory of semisets * the set theory New Foundations * Positive set theory * Internal set theory

Alternative set theory

Generically, an alternative set theory is an alternative mathematical approach to the concept of set. It is a proposed alternative to the standard set theory. Some of the alternative set theories are: * the theory of semisets * the set theory New Foundations * Positive set theory * Internal set theory