Abstract

What exactly are Peirce’s views about the a priori?1Though the term “a priori” and others derived from it do not occur in Peirce’s writings very frequently, they occur often enough to motivate the above question. Their best known appearance is in his “The Fixation of Belief ”, in which he famously rejects the “a priori method” in favor of the “scientific method”. Of course, we cannot take this rejection alone as sufficient evidence that his philosophy is incompatible with any claim to a priori knowledge or justification, since what he opposes as the a priori method is not necessarily representative of all theories having a positive role for the a..