Uncountable set of reals with a single condensation point

Seminar
Speaker
Eilon Bilinsky (TAU)
Date
20/11/2017 - 15:00 - 13:00Add to Calendar 2017-11-20 13:00:00 2017-11-20 15:00:00 Uncountable set of reals with a single condensation point 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. building 505, Room 65 אוניברסיטת בר-אילן - Department of Mathematics mathoffice@math.biu.ac.il Asia/Jerusalem public
Place
building 505, Room 65
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.

Last Updated Date : 20/11/2017