On possible restrictions of null and meager ideal, part 1

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Seminar
Speaker
Ashutosh Kumar (HUJI)
Date
04/05/2017 - 12:00 - 10:00
Place
Building 604, Room 103
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.