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Logic Seminar - Asaf Karagila - "What can you say about critical cardinals?" | Einstein Institute of Mathematics

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

Date: 
Tue, 01/05/201813:30-15:30
Location: 
Math 209
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.