Synthese 194 (6):1901-1917 (2017)

Authors
Jie Gao
Zhejiang University
Abstract
It has been argued recently that knowledge is the norm of practical reasoning. This norm can be formulated as a bi-conditional: it is appropriate to treat p as a reason for acting if and only if you know that p. Other proposals replace knowledge with warranted or justified belief. This paper gives counter-examples of both directions of any such bi-conditional. To the left-to-right direction: scientists can appropriately treat as reasons for action propositions of a theory they believe to be false but good approximations to the truth for present purposes. Cases based on a variant of Pascal’s Wager and actions performed by a skeptic also illustrate the point. To the right-to-left direction: in certain circumstances, it can be unreasonable for a scientist to reason from propositions of a theory she knows to be true.
Keywords Action  Practical rationality  Knowledge  Belief  Acceptance
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Reprint years 2017
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DOI 10.1007/s11229-016-1027-y
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References found in this work BETA

Knowledge and Practical Interests.Jason Stanley - 2005 - Oxford University Press.
Knowledge and Lotteries.John Hawthorne - 2003 - Oxford University Press.
Knowledge and its Limits.Timothy Williamson - 2000 - Oxford University Press.

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