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On a strengthening of Jónssonness for ℵ ω
Author(s) -
Eskew Monroe
Publication year - 2020
Publication title -
mathematical logic quarterly
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.473
H-Index - 28
eISSN - 1521-3870
pISSN - 0942-5616
DOI - 10.1002/malq.201900073
Subject(s) - mathematics , calculus (dental) , pure mathematics , mathematical economics , discrete mathematics , medicine , dentistry
We discuss a system of strengthenings of “ ℵ ω is Jónsson” indexed by real numbers, and identify a strongest one. We give a proof of a theorem of Silver and show that there is a barrier to weakening its hypothesis.