# Logic Seminar - Shimon Garti

On the cofinality of some classical cardinal characteristics.

We will try to prove two results about the possible cofinality of cardinal characteristics.
The first result is about the ultrafilter number, and this is a part of a joint work with Saharon Shelah.
The second is about Galvin's number, and this is a joint work with Yair Hayut, Haim Horowitz and Menachem Magidor.

## Date:

Wed, 15/05/2019 - 11:00 to 13:00

Ross 63