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When Is True Belief Knowledge?$
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Richard Foley

Print publication date: 2012

Print ISBN-13: 9780691154725

Published to Princeton Scholarship Online: October 2017

DOI: 10.23943/princeton/9780691154725.001.0001

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Disjunctions

Disjunctions

Chapter:
(p.86) Chapter 16 Disjunctions
Source:
When Is True Belief Knowledge?
Author(s):

Richard Foley

Publisher:
Princeton University Press
DOI:10.23943/princeton/9780691154725.003.0016

This chapter considers whether disjunctions create any special problems for the view that knowledge is to be understood in terms of adequate information. It illustrates a disjunction through the scenario of a flipped coin: suppose a fair coin has been flipped and lies covered on the back of S's hand. Let P be that the flipped coin has landed heads and Q that it has landed tails. S does not believe P and does not believe Q, but she does believe (P or Q). Suppose it is P that is true, that is, the coin has landed heads. Although P is a truth that S lacks, this does not prevent her from knowing the disjunction (P or Q), and the chapter explains why.

Keywords:   disjunctions, truths, conjunctions, philosophical problems, knowledge

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