John Burgess Department of Philosophy, Princeton University, Princeton, NJ 08544 jburgess@pucc.princeton.edu Title: MATHEMATICS AND BLEAK HOUSE In the wake of the questionable outcome of various projects for the nominalist reconstrual of mathematics, there has been a recrudescence of fictionalism in philosophy of mathematics. As compared with reconstructive nominalism, fictionalism has "the advantages of theft over honest toil". But it also has certain disadvantages, some of which it will be my aim to bring out. .