David Bourget (Western Ontario)
David Chalmers (ANU, NYU)
Rafael De Clercq
Jack Alan Reynolds
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Synthese 124 (2):175-191 (2000)
A speaker often decides whether or not to saysomething based on his assessment of the impact itwould have on his hearer's beliefs. If he thinks itwould bring them more in line with the truth, he saysit; otherwise he does not. In this paper, I developa model of these judgments, focusing specifically onthose of vague sentences. Under the simplifyingassumption that an utterance only conveys a speaker'sapplicability judgments, I present a Bayesian model ofan utterance's impact on a hearer's beliefs. Fromthis model I derive a model of a speaker's judgment ofwhether or not an utterance would be informative. Iillustrate it with several examples of judgments ofvague and non-vague sentences. For instance, I showthat it models the common judgment that assertingeither ``George is tall'' or ``George is not tall'' wouldbe misleading if George were borderline tall, butasserting ``George is tall and he isn't tall'' would notbe.
|Keywords||Philosophy Philosophy Epistemology Logic Metaphysics Philosophy of Language|
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Citations of this work BETA
Sam Alxatib & Francis Jeffry Pelletier (2011). The Psychology of Vagueness: Borderline Cases and Contradictions. Mind and Language 26 (3):287-326.
Jonathan Lawry (2008). Appropriateness Measures: An Uncertainty Model for Vague Concepts. Synthese 161 (2):255 - 269.
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