Friday, February 20, 201511:00 amnote new timeSet theory seminarGC 6417

# The tall and measurable cardinals can coincide on a proper class

## Arthur W. Apter

### The City University of New York

Starting from an inaccessible limit of strong cardinals, we force to construct a model containing a proper class of measurable cardinals in which the tall and measurable cardinals coincide precisely. This is joint work with Moti Gitik which extends and generalizes an earlier result of Joel Hamkins.

Distinguished professor Arthur W. Apter received his B.S. and Ph.D. degrees, both in mathematics, from MIT in 1975 and 1978, respectively. He is a mathematical logician, with a specialization in set theory, specifically large cardinals, forcing, and indestructibility, and he maintains a burgeoning interest in inner model theory, as well. Professor Apter has published well over 100 research articles.