Martin's Axiom and $\Delta ^2_1$ well-ordering of the reals

by Abraham and Shelah. [AbSh:458]
Archive for Math Logic, 1997
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.


Back to the list of publications