A Remark on Incomparable Ultrafilters in the Rudin-Keisler Order

DOI10.2307/2048755zbMath0722.04003OpenAlexW4231304608MaRDI QIDQ5753950

Eva Butkovičová

Publication date: 1991

Published in: Proceedings of the American Mathematical Society (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2307/2048755

zbMATH Keywords

incomparable ultrafiltersRudin-Keisler ordering

Mathematics Subject Classification ID

Consistency and independence results (03E35) Other combinatorial set theory (03E05)

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