×
DEFINITION. LZF(U) is the language of ZF expanded by a unary predicate U. ZF(U) is the ZF set theory plus all the instances of the replacement schema for.
N e M is said to be an inner model of M if N is a transitive class in M containing all the ordinals and satisfying the axioms of. ZF-set theory. DEFINITION.
Then a new inner model H exists and has the following properties: (1) H ≠ HOD; (2) Th(H) = Th(HOD); (3) there is j: H → H; (4) there is a c.u.b. ...
Inner model theory is the study of certain models of ZFC or some fragment or strengthening thereof. Ordinarily these models are transitive subsets or ...
Nov 1, 2024 · Abstract:An elementary embedding j:M\rightarrow N between two inner models of ZFC is cardinal preserving if M and N correctly compute the class ...
2. ZFC does not decide whether all projective sets of reals are Lebesgue measurable. 3. ZFC does not decide the Continuum Hypothesis.
The goal of this survey paper is to give an overview of recent developments in inner model theory. We discuss several most important questions in the field ...