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Supercompactness and measurable limits of strong cardinals II: Applications to level by level equivalence

✍ Scribed by Arthur W. Apter


Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
125 KB
Volume
52
Category
Article
ISSN
0044-3050

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✦ Synopsis


Abstract

We construct models for the level by level equivalence between strong compactness and supercompactness in which for κ the least supercompact cardinal and δκ any cardinal which is either a strong cardinal or a measurable limit of strong cardinals, 2^δ^ > δ ^+^ and δ is < 2^δ^ supercompact. In these models, the structure of the class of supercompact cardinals can be arbitrary, and the size of the power set of κ can essentially be made as large as desired. This extends and generalizes [5, Theorem 2] and [4, Theorem 4]. We also sketch how our techniques can be used to establish a weak indestructibility result. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)


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Failures of GCH and the level by level e
✍ Arthur W. Apter 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 175 KB

## Abstract We force and obtain three models in which level by level equivalence between strong compactness and supercompactness holds and in which, below the least supercompact cardinal, GCH fails unboundedly often. In two of these models, GCH fails on a set having measure 1 with respect to certai