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Strong analogues of Martin's axiom imply axiom R
Journal of Symbolic Logic 52 (1):216-218 (1987)
Abstract
We show that either PFA + or Martin's maximum implies Fleissner's Axiom R, a reflection principle for stationary subsets of P ℵ 1 (λ). In fact, the "plus version" (for one term denoting a stationary set) of Martin's axiom for countably closed partial orders implies Axiom ROther Versions
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Citations of this work
Partial orderings with the weak Freese-Nation property.Sakaé Fuchino, Sabine Koppelberg & Saharon Shelah - 1996 - Annals of Pure and Applied Logic 80 (1):35-54.
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