Increasing δ21 and Namba-style forcing

DOI10.2178/jsl/1203350792zbMath1139.03040OpenAlexW2156856843MaRDI QIDQ5444706

Richard Ketchersid, Jindřich Zapletal, Paul B. Larson

Publication date: 25 February 2008

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

Full work available at URL: https://projecteuclid.org/euclid.jsl/1203350792

zbMATH Keywords

precipitous ideal\(\delta^1_n\)Namba-style forcing

Mathematics Subject Classification ID

Descriptive set theory (03E15) Large cardinals (03E55) Other aspects of forcing and Boolean-valued models (03E40)

Related Items (2)

Preservation theorems for Namba forcing ⋮ On countable stationary towers

Cites Work

• Martin's maximum, saturated ideals, and nonregular ultrafilters. I
• The axiom of determinacy, forcing axioms, and the nonstationary ideal
• Precipitous ideals
• The nonstationary ideal and the other 𝜎-ideals on 𝜔₁

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