1.

Record Nr.

UNINA9910806265303321

Autore

Woodin W. H (W. Hugh)

Titolo

The axiom of determinacy, forcing axioms, and the nonstationary ideal / / W. Hugh Woodin

Pubbl/distr/stampa

Berlin ; ; New York, : De Gruyter, c2010

ISBN

1-282-72287-5

9786612722875

3-11-021317-6

Edizione

[2nd rev. ed.]

Descrizione fisica

1 online resource (858 p.)

Collana

De Gruyter series in logic and its applications, , 1438-1893 ; ; 1

Classificazione

SK 130

Disciplina

511.3

Soggetti

Forcing (Model theory)

Model theory

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Frontmatter -- Contents -- 1 Introduction -- 2 Preliminaries -- 3 The nonstationary ideal -- 4 The ℙmax-extension -- 5 Applications -- 6 ℙmax variations -- 7 Conditional variations -- 8 ♣ principles for ω 1 -- 9 Extensions of L(Γ, ℝ) -- 10 Further results -- 11 Questions -- Backmatter

Sommario/riassunto

The starting point for this monograph is the previously unknown connection between the Continuum Hypothesis and the saturation of the non-stationary ideal on ω1; and the principle result of this monograph is the identification of a canonical model in which the Continuum Hypothesis is false. This is the first example of such a model and moreover the model can be characterized in terms of maximality principles concerning the universal-existential theory of all sets of countable ordinals. This model is arguably the long sought goal of the study of forcing axioms and iterated forcing but is obtained by completely different methods, for example no theory of iterated forcing whatsoever is required. The construction of the model reveals a powerful technique for obtaining independence results regarding the combinatorics of the continuum, yielding a number of results which have yet to be obtained by any other method. This monograph is directed to researchers and advanced graduate students in Set Theory.



The second edition is updated to take into account some of the developments in the decade since the first edition appeared, this includes a revised discussion of Ω-logic and related matters.