As you might imagine, I am not a. And yet the physicist has words of comfort for devotees of the boy band, distraught at the exit of Zayn. At at Q and A session. One day there may well be proof of multiple universes and in that universe Zayn is still in.

Squares of squares, and the group of rational points on the circle. The purpose of this post is to describe a slightly different way of thinking about the existence or otherwise of a 3 3 magic square of squares. Of course it may not lead to any real progress, but it does at least suggest some natural weaker questions that may be more amenable. It follows on from part 1. And any common difference d.

Center for the Study of Language and Information. Welcome to the web pages of the Metaphysics Research Lab. Whereas physics is the attempt to discover the laws that govern fundamental concrete objects, metaphysics is the attempt to discover the laws that systematize the fundamental abstract objects presupposed. Which is authored by Edward N.

Tuesday, January 13, 2009. Words and other things v2. The new URL is inferential. I do, however, have the domain indexical. Which will redirect to the new blog.

Trying to generate more light than heat since 2006. November 14, 2013 in Uncategorized. I just noticed that recently this site has been getting an odd amount of traffic, odd because it has not been updated in years. You should probably check out my academic website. Which contains my recent info, abstracts of a couple of papers, and my current CV. August 3, 2009 in logic. There is some excellent news, posted by Richard Zach. Series and the Lectures Notes in Logic.

Mathematics and philosophy of the infinite. List of My Graduate Students. Different set theories are never bi-interpretable. Different set theories extending ZF are never bi-interpretable! For showing specifically that ZF and ZFC are.