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Linguistic and Epistemic Approaches to the Vagueness and Their Consistencies with the Use Theory of Meaning

Taheri, Ali | 2015

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 58557 (42)
  4. University: Sharif University of Technology
  5. Department: Philosophy of Science
  6. Advisor(s): Sheykh Rezaee, Hossein; Azadegan, Ebrahim
  7. Abstract:
  8. In the technical-philosophical context, vagueness has a different meaning from that generally is known. In philosophical research, it refers to unclear boundaries of meaning of words and phrases. In spite of vigorous debate, philosophers largely agree about three features of vagueness: borderline cases, lack of sharp boundaries, susceptibility to sorites paradox. Relating to vagueness phenomenon, there are three general approaches named linguistic, epistemic and metaphysical ones. All these approaches struggle to determine the borderline cases consistently, give a satisfactory reason for lack sharp or clear boundaries and finally solve or dissolve sorites paradox. In addition, some conceive that vagueness have another challenging characteristic which is known as higher order vagueness that a theory of vagueness should deal with. Based on these problems and various view of vagueness, some believe that classical logic is enough to overcome that phenomenon, some other change the semantics of this logic and the others think a non-classical logic is needed to tackle this problem. This research firstly aims to study and criticize main theories of vagueness with concentration on principles, assumptions, structures (including logic) and criteria of them. In the next step, with focus on “use theory of meaning” and its consequences for vagueness, the studied theories of vagueness will be evaluated by Wittgensteinianism point of view
  9. Keywords:
  10. Epistemic Approach ; Linguistics ; Meaning Theory ; Semantics ; Sorites Argument ; Vagueness

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