Solomon Feferman is on the faculty of Stanford University, California, where he is Professor of Mathematics and Philosophy. He is a recipient of the Rolf Schock Prize in Logic and Philosophy, a fellow of the American Academy of Arts and Sciences, and has held a Guggenheim fellowship twice. He is the author of In the Light of Logic and the editor-in-chief of the multi-volume Kurt Goedel: Collected Works. He was one of Tarski's students at UC Berkeley in the 1950s.