# Dilip Raghavan: Real games and strategically selective coideals, Part 2.

Invitation to the Logic Seminar at the National University of Singapore

Date: Wednesday, 7 October 2015, 17:00 hrs

Room: S17#04-06, Department of Mathematics, NUS

Speaker: Dilip Raghavan

Title: Real games and strategically selective coideals, Part 2.

URL: http://www.comp.nus.edu.sg/~fstephan/logicseminar.html

A classical theorem of Mathias says that the Axiom of Determinacy for
Real games (AD_R) implies that there are no tall selective coideals on
omega. Farah introduced the notion of a semiselective coideal and
proved in ZF that these are precisely those ideals on omega whose