During January 27-30, 2014 I visited the Mathematics Department of
Cornell University. I gave an invited talk entitled ** Implicit
definability in arithmetic**.

My abstract is available in several formats: PDF, PS, DVI.

My slides are available in several formats: PDF, PS, DVI.

A list of my recent and upcoming talks is available.

My publication list is available.

t20@psu.edu / 29 May 2014