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  • 2 - Supervaluationism, Subvaluationism and the Sorites Paradox

  • from Part I - Solutions to the Sorites Paradox
  • Edited by Sergi Oms, Universitat de Barcelona, Elia Zardini
  • Book:
    The Sorites Paradox
    Published online:
    20 September 2019
    Print publication:
    10 October 2019, pp 38-62

  • Summary

    One way in which we might approach the challenge posed by the Sorites Paradox is considering that Sorites-susceptible predicates have several candidate extensions, or several ways in which these expressions can be made precise. For example, a candidate extension for the predicate ‘is a baby’ is the set of humans of less than two years, but also the set of those less than two years and one second, and of those less than two years and two seconds. In this chapter we present and discuss two theories for vague predicates based on this idea: super-valuationism and subvaluationism. The chapter is structured in three parts. The first presents the super- and subvaluationist theories: their similarities and differences in the semantics, the resulting logics with their most characteristic features. The second reviews the super- and subvaluationist solutions to the Sorites Paradox and provides discussion on several controversies surrounding these theories. The third part introduces proof procedures for s’valuationist logics.