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Necessity and Metaphysical Naiveté in Descartes’ Meditations

Abstract

In the introduction to his two volume work, Philosophical Analysis in the Twentieth Century, Scott Soames sums up the achievements of analytical philosophy by stating that "no philosophical advance of the twentieth century is more significant, more far-reaching, and destined to be more long-lasting than the success achieved in distinguishing logical consequence, logical truth, necessary truth, and apriori truth form one another." 1 Prior to Kripke, the notions of necessary and a priori truths were taken to coincide. Central to Kripke's advance is the observation that necessity is a metaphysical concept while aprioricity is an epistemological concept and the two need not be depend on one another. 2 My aim in this paper is two-fold. First, I shall consider to what extent the independence of metaphysics from epistemology plays a role in Descartes' quest for certainty in the Meditations, specifically with regard to the cogito, which he claims is a necessary truth. In doing so, I will respond to recent scholarship that has raised questions about the extent to which Descartes' method of radical doubt employed in the Meditations is free of certain metaphysical presuppositions, as he himself claimed. Second, I shall argue that this independence underlies a solution to the following problem that arises in the first meditation: The way to test a belief for indubitability is to show that it cannot be conceived otherwise. One class of beliefs that typically cannot be conceived otherwise are necessary truths.