Hartry Field (B.A., Wisconsin; M.A., Ph. D. Harvard), Silver Professor of Philosophy and University Professor, specializes in metaphysics, philosophy of mathematics, philosophy of logic, and philosophy of science. He has had fellowships from the National Science Foundation, the National Endowment for the Humanities, and the Guggenheim Foundation. He is the author of Science Without Numbers (Blackwell 1980), which won the Lakatos Prize, of (Blackwell 1989), and of Truth and the Absence of Fact (Oxford 2001). Current interests include objectivity and indeterminacy, a priori knowledge, causation, and the semantic and set-theoretic paradoxes.