Place: Fields Institute (Room 210)
Date: April 22nd , 2016 (13:30-15:00)
Speaker: Juris Steprans
Title: Graph embedding and the P-ideal dichotomy
Abstract: I will discuss a family of proofs of the consistency of a universal graph on $\omega_1$ with the failure of CH that rely on iterating reals and using the P-ideal dichotomy.