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Chapter 7 - Denying Premise 3

Warrant for P as Warrant for Q

Published online by Cambridge University Press:  04 May 2019

Marc Alspector-Kelly
Affiliation:
Western Michigan University
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Summary

I set aside the buck-passing argument for the next three chapters. WP requires an alternative source of warrant for Q when transmission fails. In this chapter I consider the proposal that S’s warrant for P itself suffices also as a warrant for Q. The advocate of this view must claim that S’s warrant for P so suffices only when transmission fails. For, otherwise, it will imply the untenable closure principle that S, warranted in believing P, has a warrant for Q whether or not she recognizes that P implies Q. But there is no obvious reason why S’s warrant for P would only warrant Q when transmission fails; typical putative reasons to think that S’s warrant for P suffices for Q apply whether or not she recognizes the inferential relation. Moreover, Q does not, on its own, ground any empirical prediction whatsoever, and certainly not B, S’s basis for believing P. In fact, ~Q does predict B. So, if anything, B supports ~Q. Moreover, direct appeal to B as warranting Q violates NIFN. So if NIFN demonstrates that transmission fails, it also demonstrates that S’s warrant for P itself does not suffice as a warrant for Q.
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Publisher: Cambridge University Press
Print publication year: 2019

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  • Denying Premise 3
  • Marc Alspector-Kelly, Western Michigan University
  • Book: Against Knowledge Closure
  • Online publication: 04 May 2019
  • Chapter DOI: https://doi.org/10.1017/9781108604093.007
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  • Denying Premise 3
  • Marc Alspector-Kelly, Western Michigan University
  • Book: Against Knowledge Closure
  • Online publication: 04 May 2019
  • Chapter DOI: https://doi.org/10.1017/9781108604093.007
Available formats
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To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Denying Premise 3
  • Marc Alspector-Kelly, Western Michigan University
  • Book: Against Knowledge Closure
  • Online publication: 04 May 2019
  • Chapter DOI: https://doi.org/10.1017/9781108604093.007
Available formats
×