The Ultrapower Axiom
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CitationGoldberg, Gabriel. 2019. The Ultrapower Axiom. Doctoral dissertation, Harvard University, Graduate School of Arts & Sciences.
AbstractThe inner model problem for supercompact cardinals, one of the central open problems in modern set theory, asks whether there is a canonical model of set theory with a supercompact cardinal. The problem is closely related to the more precise question of the equiconsistency of strongly compact cardinals and supercompact cardinals. This dissertation approaches these two problems abstractly by introducing a principle called the Ultrapower Axiom which is expected to hold in all known canonical models of set theory. By investigating the consequences of the Ultrapower Axiom under the hypothesis that there is a supercompact cardinal, we provide evidence that the inner model problem can be solved. Moreover, we establish that under the Ultrapower Axiom, strong compactness and supercompactness are essentially equivalent.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:42029483
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