Michael Devitt There Is No a Priori

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In his paper “There is no A Priori”, Michael Devitt presents a defense of his naturalistic account of knowledge arguing that the only way of knowing is the empirical way of knowing. Rejecting a priori knowledge based on the conclusion that the unsuccessful attempts to explain this knowledge proves it to be obscure and mysterious, he proposes the view that an adequate recognition of a holistic nature of confirmation would demonstrate that there is no reason to think that concepts of logic and mathematics are not liable to empirical revision. Devitt’s defense, however, far from offering a persuasive argument that would prove that all knowledge is empirical and justified by experience, not only raises serious problems by presenting a circular argument that fails to provide a conclusive reason for why a priori knowledge should be rejected on the grounds of its obscure connections, but also comes up short when its naturalistic conclusions are evaluated under its own standard for the justification of beliefs. Devitt begins his argument by saying that what makes naturalism an attractive approach is the fact that it postulates the thesis that “there is only one way of knowing”[1], and by this it is assumed he means that his theory of knowledge is to be preferred over other theories in part because of its simplicity. Although he recognizes that the fact that people have certain intuitions in cases of logic or mathematical concepts could be used to prove naturalism wrong, he quickly dismisses this position by objecting that the concept of the a priori has not been able to offer satisfactory answers to the question of its justification, and without satisfactory answers this knowledge is left mysterious and deeply obscure. For this reason, he concludes that the attempt to understand necessary truths in the way apriorists suggest should be replaced by an explanation that makes
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