Abstract
We use a κ+-Mahlo cardinal to give a forcing construction of a model in which there is no sequence 〈 Aγ:γ<ω2 〉 of sets of cardinality ω1 such that {λ<ω2:∃ c⊂λ (⋃ c=λ & otp(c)=ω1&∀γ<λ (c∩γ∈ Aγ))} is stationary.
Citation
William J. Mitchell. "A weak variation of Shelah’s I[ω2]." J. Symbolic Logic 69 (1) 94 - 100, March 2004. https://doi.org/10.2178/jsl/1080938829
Information
Published: March 2004
First available in Project Euclid: 2 April 2004
zbMATH: 1073.03028
MathSciNet: MR2039349
Digital Object Identifier: 10.2178/jsl/1080938829
Rights: Copyright © 2004 Association for Symbolic Logic
