Uncountable set of reals with a single condensation point

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Seminar
Speaker
Eilon Bilinsky (TAU)
Date
20/11/2017 - 15:00 - 13:00
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.