Bachelor of Arts, Cornell Univercity, 1960; Master of Arts, University of Michigan, 1962; Doctor of Philosophy, University Michigan, 1965.
Assistant professor, U. Calgary, Alberta, Canada, 1963-1966; assistant professor philosophy, University of California, Irvine, 1966-1968; associate professor, University of California, 1968-1971; professor, University of California, 1971-1972; professor philosophy, U. North Carolina, Chapel Hill, since 1972.
Member American Philosophical Association.
Children— Steven, Tobin.