I am a Professor of Philosophy at the University of Calgary, working in logic, history of analytic philosophy, and the philosophy of mathematics. In logic, my main interests are non-classical logics and proof theory. My historical interests lie mainly in the development of formal logic and historical figures associated with this development such as Hilbert, Gödel, and Carnap. In the philosophy of mathematics I have mainly worked on Hilbert's program and the philosophical relevance of proof theory.
I am also the Graduate Program Director for Calgary's MA and PhD programmes in philosophy.