The nonstationary ideal in the ℛmax extension
Paul B. Larson
Source: J. Symbolic Logic Volume 72, Issue 1
(2007), 138-158.
Abstract
The forcing construction ℛmax, invented by W. Hugh Woodin, produces a model whose collection of subsets of ω₁ is in some sense maximal. In this paper we study the Boolean algebra induced by the nonstationary ideal on ω₁ in this model. Among other things we show that the induced quotient does not have a simply definable form. We also prove several results about saturation properties of the ideal in this extension.
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Permanent link to this document: http://projecteuclid.org/euclid.jsl/1174668389
Digital Object Identifier: doi:10.2178/jsl/1174668389
Mathematical Reviews number (MathSciNet): MR2298476
Zentralblatt MATH identifier: 1128.03044
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