No universal in singular

Saharon Shelah

doi:10.1007/s40574-020-00229-6

No universal in singular

Saharon Shelah^*

^*Corresponding author for this work

Einstein Institute of Mathematics

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

An old question is whether there is a countable complete first order theory T such that T has a universal model of cardinality λ>ℵ0iff̲λ=2<λ>ℵ0. We solve it here for the class singular cardinals.

Original language	English
Pages (from-to)	361-368
Number of pages	8
Journal	Bolletino dell Unione Matematica Italiana
Volume	13
Issue number	3
DOIs	https://doi.org/10.1007/s40574-020-00229-6
State	Published - 1 Sep 2020

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© 2020, Unione Matematica Italiana.

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No universal in singular

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