Decreasing chains without lower bounds in Rudin-Frolík order for regulars

2023/03/28 by Jureczko, Joanna
#FOS: Mathematics #Logic (math.LO)

paper · doi:10.48550/arxiv.2304.01398

Abstract

The aim of this paper is to prove that for there exist a chain in the Rudin-Frolík order of βκ∖ κ of length μ with κ\leqslant μ\leqslant 2^κ for regular κ> ω without a lower bound.

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