William L. Rowe’s A Priori Argument for Atheism

William Rowe’s a posteriori arguments for the non-existence of God are well-known. Rather less attention has been given, however, to Rowe’s intriguing a priori argument for atheism. In this paper, I examine the three published responses to Rowe’s a priori argument (due to Bruce Langtry, William Morris, and Daniel and Frances Howard-Snyder, respectively). I conclude that none is decisive, but I show that Rowe’s argument nevertheless requires more defence than he provides.