When:

February 23, 2018 @ 2:30 pm – 3:30 pm

2018-02-23T14:30:00-10:00

2018-02-23T15:30:00-10:00

Where:

Keller 314

This week Umar Gaffar will give Shelah’s proof of the following result:

Let $\lambda$ be the cardinality of an ultraproduct of finite sets. If $\lambda$ is infinite then $\lambda=\lambda^{\aleph_0}$.