Bayesianism and Language Change

  • Authors:
  • Jon Williamson

  • Affiliations:
  • Department of Philosophy, King's College, London WC2R 2LS, U.K. E-mail:

  • Venue:
  • Journal of Logic, Language and Information
  • Year:
  • 2002

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Abstract

Bayesian probability is normally defined over a fixed language or eventspace. But in practice language is susceptible to change, and thequestion naturally arises as to how Bayesian degrees of belief shouldchange as language changes. I argue here that this question poses aserious challenge to Bayesianism. The Bayesian may be able to meet thischallenge however, and I outline a practical method for changing degreesof belief over changes in finite propositional languages.