Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4661594 | Annals of Pure and Applied Logic | 2016 | 25 Pages |
Abstract
We separate various weak forms of Club Guessing at ω1ω1 in the presence of 2ℵ02ℵ0 large, Martin's Axiom, and related forcing axioms.We also answer a question of Abraham and Cummings concerning the consistency of the failure of a certain polychromatic Ramsey statement together with the continuum large.All these models are generic extensions via finite support iterations with symmetric systems of structures as side conditions, possibly enhanced with ω-sequences of predicates, and in which the iterands are taken from a relatively small class of forcing notions.We also prove that the natural forcing for adding a large symmetric system of structures (the first member in all our iterations) adds ℵ1ℵ1-many reals but preserves CH.
Related Topics
Physical Sciences and Engineering
Mathematics
Logic
Authors
David Asperó, Miguel Angel Mota,