Martin's Axiom and Delta^2_1 well-ordering of the reals
Logic
2008-02-03 v1
Abstract
Assuming an inaccessible cardinal kappa, there is a generic extension in which MA + 2^{aleph_0} = kappa holds and the reals have a Delta^2_1 well-ordering.
Keywords
Cite
@article{arxiv.math/9408214,
title = {Martin's Axiom and Delta^2_1 well-ordering of the reals},
author = {Uri Abraham and Saharon Shelah},
journal= {arXiv preprint arXiv:math/9408214},
year = {2008}
}