On Special Functions and Theorem Proving in Logics for 'Generally'

  • Authors:
  • Sheila R. M. Veloso;Paulo A. S. Veloso

  • Affiliations:
  • -;-

  • Venue:
  • SBIA '02 Proceedings of the 16th Brazilian Symposium on Artificial Intelligence: Advances in Artificial Intelligence
  • Year:
  • 2002

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Abstract

Logics for 'generally' are intended to express some vague notions, such as 'generally', 'most', 'several', etc., by means of the new generalized quantifier 驴 and to reason about assertions with 驴 (important issues in Logic and in Artificial Intelligence). We introduce the ideas of special functions: generic and coherent ones. Generic functions (akin to Skolem functions) enable elimination of 驴 and coherent functions reduce consequence to the classical case. These devices permit using proof procedures and theorem provers for classical first-order logic to reason about assertions involving 'generally'.