Richard L Epstein received his B.A. summa cum laude from the University of Pennsylvania, and his Ph.D. from the University of California, Berkeley. He held a post-doctoral fellowship in mathematics and philosophy at Victoria University of Wellington, New Zealand, and was a Fulbright Fellow to Brazil and a National Academy of Sciences Scholar to Poland. He is the author of "Propositional Logics" and, with Walter Carnielli, "Computability". He is now the Head of the Advanced Reasoning Forum.