BIU seminar in Set Theory
On 04/05/2017, 10-12, Building 604, Room 103
Speaker: Ashutosh Kumar
Title: On possible restrictions of null and meager ideal
Abstract. Fremlin asked if the null ideal restricted to a non null set of reals could be isomorphic to the non stationary ideal on omega_1. Eskew asked if the null and the meager ideal could both be somewhere countably saturated. We’ll show that the answer to both questions is yes. Joint work with Shelah.