BIU seminar in Set Theory
On 20/11/2017, 13-15, Building 505, Room 65
Speaker: Eilon Bilinsky (TAU)
Title: Uncountable set of reals with a single accumulation point
Abstract. We construct a model of ZF with an uncountable set of reals having a unique condensation point. This answers a question of Sierpinski from 1918.