Aida Alibek : Insufficient expansions of complete theories

Posted by Aida Alibek , part of the Louise Hay Logic Seminar.

At

Sept. 11, 2014, 4 p.m.

In

SEO 427

Abstract

We will consider the example of a complete countable theory (due to B. Omarov), whose expansions reduce the number of countable non-isomorphic models. We will see the reduction from $\omega$ to $n$, as well as $2^\omega$ to $\omega$ and $2^\omega$ to $n$.