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Closure, Contrast, and Answer

Jonathan Schaffer
Philosophical Studies: An International Journal for Philosophy in the Analytic Tradition
Vol. 133, No. 2 (Mar., 2007), pp. 233-255
Published by: Springer
Stable URL: http://www.jstor.org/stable/25471898
Page Count: 23
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Closure, Contrast, and Answer
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Abstract

How should the contrastivist formulate closure? That is, given that knowledge is a ternary contrastive state Kspq (s knows that p rather than q), how does this state extend under entailment? In what follows, I will identify adequacy conditions for closure, criticize the extant invariantist and contextualist closure schemas, and provide a contrastive schema based on the idea of extending answers. I will conclude that only the contrastivist can adequately formulate closure.

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