On projective ordinals

DOI10.2307/2272639zbMath0292.02056OpenAlexW1997296099MaRDI QIDQ4043088

Alexander S. Kechris

Publication date: 1974

Published in: Journal of Symbolic Logic (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2307/2272639

Mathematics Subject Classification ID

Descriptive set theory (03E15) Hierarchies of computability and definability (03D55)

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Cites Work

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• Two theorems about projective sets
• The axiom of determinateness and reduction principles in the analytical hierarchy
• SOME CONSEQUENCES OF THE AXIOM OF DEFINABLE DETERMINATENESS
• Some applications of model theory in set theory