A theorem about Σ¹₁ equivalence relations

DOI10.1090/proc/15884OpenAlexW4246642745WikidataQ113822921 ScholiaQ113822921MaRDI QIDQ3390678

Howard Becker

Publication date: 25 March 2022

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

Full work available at URL: https://doi.org/10.1090/proc/15884

Mathematics Subject Classification ID

Descriptive set theory (03E15)

Cites Work

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• Descriptive set theory
• Countable admissible ordinals and hyperdegrees
• Degree-invariant, analytic equivalence relations without perfectly many classes
• Analytic determinacy and 0^#
• Forcing with tagged trees
• ASSIGNING AN ISOMORPHISM TYPE TO A HYPERDEGREE

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