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20152024
most citedHindman's Theorem is only a countable phenomenon

6 citations · 7 across the 3 of their papers we have counts for

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math.LO2024

Q-points, selective ultrafilters, and idempotents, with an application to choiceless set theory

David Fernández-Bretón, Jareb Navarro-Castillo, Jesús A. Soria-Rojas

We study ultrafilters from the perspective of the algebra in the Čech-Stone compactification of the natural numbers, and idempotent elements therein. The first two results that we…