Cofinality changes required for a large set of unapproachable ordinals below $\aleph _{\omega +1}$

DOI10.1090/S0002-9939-07-08760-6zbMath1115.03059MaRDI QIDQ3438127

M. C. Stanley

Publication date: 15 May 2007

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

zbMATH Keywords

Erdős-Radocofinalityapproachable ordinal\(I[\lambda \)]

Mathematics Subject Classification ID

Other combinatorial set theory (03E05)

Cites Work

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• Canonical structure in the universe of set theory. I
• Splitting Strongly Almost Disjoint Families
• A very weak square principle
• Collapsing successors of singulars

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