Countable ordinals and the analytical hierarchy

DOI10.2140/PJM.1975.60.223zbMath0287.02042OpenAlexW1991372949MaRDI QIDQ1845723

Alexander S. Kechris

Publication date: 1975

Published in: Pacific Journal of Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2140/pjm.1975.60.223

Mathematics Subject Classification ID

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

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