We held seminar on Tuesday , May 8,
time 16:00-17:30, seminar room: 201.
Speaker: Asaf Karagila (BGU)
Title: Horrors in topology, when N is not Lindelof!
Abstract: We will discuss a bit of the horrors of topology when the axiom of choice is on vacation.
We will see that it is enough to require that either N or R with their standard topologies are Lindelof in order to prove that every second countable space is separable and Lindelof.