Lower Bounds of Sets of P-points

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Notre Dame Journal of Formal Logic 64 (3):317-327 (2023)
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Abstract

We show that MAκ implies that each collection of Pc-points of size at most κ which has a Pc-point as an RK upper bound also has a Pc-point as an RK lower bound.

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10.1215/00294527-2023-0009

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A long chain of P-points.Borisa Kuzeljevic & Dilip Raghavan - 2018 - Journal of Mathematical Logic 18 (1):1850004.
The intersection of nonstandard models of arithmetic.Andreas Blass - 1972 - Journal of Symbolic Logic 37 (1):103-106.

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