Joseph Shieber

In a number of recent articles, Hartry Field has attempted to reclaim the a priori for his own brand of non‐factualist epistemology by introducing a non‐epistemic notion of the a priori based purely upon the position of individual beliefs within belief systems. In this article we examine (i) whether a robust enough notion of aprioricity is available to Field, and, by extension, to the radical empiricist and (ii) whether it is possible to connect up the non‐epistemic notion of aprioricity with questions about the epistemic status of those beliefs that happen to be a priori in the non‐epistemic sense.

This paper uses recent research in developmental psychology regarding the acquisition of the concept of belief in young children to explore the contrast between a disposition-based account of the principles underlying linguistic communication and the representative and highly influential intention-based accounts of assertional practice advanced by David Lewis and Donald Davidson. Indeed, evidence from recent work in developmental psychology would seem to suggest that disposition-based accounts are not only possible accounts of the acquisition of competence in assertional practice, but are in fact better than their rivals in explaining the way such competence is actually acquired.