Presupposition and the a priori

Philosophical Studies 165 (2):509-526 (2013)
Authors
Nate Charlow
University of Toronto, St. George Campus
Abstract
This paper argues for and explores the implications of the following epistemological principle for knowability a priori (with 'Ka' abbreviating 'it is knowable a priori that'). (AK) For all ϕ, ψ such that ϕ semantically presupposes ψ: if Ka(ϕ), Ka(ψ). Well-known arguments for the contingent a priori and a priori knowledge of logical truth founder when the semantic presuppositions of the putative items of knowledge are made explicit. Likewise, certain kinds of analytic truth turn out to carry semantic presuppositions that make them ineligible as items of a priori knowledge. On a happier note, I argue that (AK) offers an appealing, theory-neutral explanation of the a posteriori character of certain necessary identities, as well as an interesting rationalization for a commonplace linguistic maneuver in philosophical work on the a priori.
Keywords A priori  Semantic presupposition  Contingent a priori  Necessary a posteriori  Kripke  Epistemology of logic
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DOI 10.1007/s11098-012-9965-9
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References found in this work BETA

Knowledge and its Limits.Timothy Williamson - 2000 - Oxford University Press.
Analyticity Reconsidered.Paul Artin Boghossian - 1996 - Noûs 30 (3):360-391.
Deeply Contingent a Priori Knowledge.John Hawthorne - 2002 - Philosophy and Phenomenological Research 65 (2):247-269.
Good News About the Description Theory of Names.Bart Geurts - 1997 - Journal of Semantics 14 (4):319-348.

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