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A Cardinal Structure Theorem for an Ultrapower
Published online by Cambridge University Press: 20 November 2018
Abstract
In this note, we construct a model with a normal measure U over a measurable cardinal κ so that the cardinal structures of V and Vκ/U are the same ≤2κ. We then show that it is possible to construct a model where this is not true.
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- Research Article
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- Copyright © Canadian Mathematical Society 1985