Chapter

Introduction

Albert Casullo

in A Priori Justification

Published in print April 2003 | ISBN: 9780195115055
Published online May 2006 | e-ISBN: 9780199786190 | DOI: http://dx.doi.org/10.1093/0195115058.003.0001
 Introduction

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This chapter provides a taxonomy of widely endorsed conditions on a priori justification. The conditions fall into two broad categories: epistemic, which includes defeasibility, strength, and source conditions; and nonepistemic, which involves the concepts of analyticity or necessity. Two major claims are argued: (1) nonepistemic conditions are neither necessary nor sufficient for a priori justification, and (2) if a theory imposes epistemic conditions on the a priori that differ from those it imposes on the a posteriori, they must be supported by independent argument or rejected as ad hoc. Two defensible conditions on a priori justification emerge: justification by a nonexperiential source, and justification that is not defeasible by experience.

Keywords: analyticity; defeasibility; defeasible; epistemic; experiential; necessity; nonepistemic; nonexperiential; source; strength

Chapter.  1567 words. 

Subjects: Metaphysics

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