Logic Seminar - Asaf Karagila - "What can you say about critical cardinals?"

We isolate the property of being a critical point, and prove some basic positive
properties of them. We will also prove a lifting property that allows lifting
elementary embedding to symmetric extensions, and outline a construction that
shows that it is consistent that a successor of a critical cardinal is singular.
This is a recent work with Yair Hayut.

Date: 

Tue, 01/05/2018 - 13:30 to 15:30

Location: 

Math 209