On coabsoluteness classes of Borel and hyper-Borel sets

zbMath0735.54025MaRDI QIDQ1814634

Sh. Sh. Kari-Niyazov

Publication date: 25 June 1992

Published in: Moscow University Mathematics Bulletin (Search for Journal in Brave)

zbMATH Keywords

Borel setscoabsolutenessperfect irreducible preimage

Mathematics Subject Classification ID

Special maps on topological spaces (open, closed, perfect, etc.) (54C10) Baire category, Baire spaces (54E52) Descriptive set theory (topological aspects of Borel, analytic, projective, etc. sets) (54H05)

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