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arXiv:2003.01272 [math.LO]AbstractReferencesReviewsResources

The characterization of the spectra of cardinalities of branches of Kurepa trees

Márk Poór, Saharon Shelah

Published 2020-03-03Version 1

We give a complete characterization of the sets of cardinals that in a suitable forcing extension can be the Kurepa spectrum, that is, the set of cardinalities of branches of Kurepa trees. This answers a question of the first named author.

Categories: math.LO
Subjects: 03E35, 03E05, 03E45
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