The Future of the A Priori

Abstract

Two conceptions of a priori methods and assumptions can be distinguished. First, there are the assumptions and methods accepted prior to a given inquiry. Second, there are innate assumptions and methods. For each of these two types of a priori methods and assumptions, we can also allow cases in which one starts with something that is a priori and is justified in reaching a new belief or procedure without making any appeal to new experiential data. But we should not suppose there is some further sort of a priori explained in terms of some other notion of justification. If we try to construct a notion of the a priori by considering ways in which knowledge, belief, or reasoning might be though to be directly a priori, via direct insight, inability to imagine something false, intentions about use of language, and the language faculty, the resulting conception of the a prior in each of these cases reduces to either of the first two conceptions.