- set theory, a
semiset is a
proper class that is a
subclass of a set. In the
typical foundations of Zermelo–Fraenkel set theory,
semisets are impossible...
- and ZFC. In
other set theories, such as New
Foundations or the
theory of
semisets, the
concept of "proper class"
still makes sense (not all
classes are sets)...
-
Vopenka makes a
specific point of
allowing proper subclasses of sets,
called semisets. Even in
systems related to ZFC, this
scheme is
sometimes restricted to...
-
Power set
Projection Quasi-set
theory Relation Rough set Russell's
paradox Semiset Set
theory Alternative set
theory Axiomatic set
theory General set theory...
- logice. Praha: Academia. Vopěnka, Petr; Hájek, Petr (1972). The
Theory of
Semisets. Trans. Jech, T. and Rousseau, G. Praha: Academia. Hájek, Petr; Havránek...
- (social theory) Post-normal
science Rough fuzzy hybridization Rough set
Semiset Sørensen
similarity index Synchronicity Type-2
Fuzzy Sets and
Systems Uncertainty...
- Petr Hájek (1972). The
Theory of
Semisets. Amsterdam, Prague: North-Holland. ISBN 0-7204-2267-1.
Mathematics portal Semiset Vopěnka's
principle "Petr Vopěnka...
