Herbrand's Theorem for Prenex Gödel Logic and its Consequences for Theorem Proving

  • Authors:
  • Matthias Baaz;Agata Ciabattoni;Christian G. Fermüller

  • Affiliations:
  • -;-;-

  • Venue:
  • LPAR '01 Proceedings of the Artificial Intelligence on Logic for Programming
  • Year:
  • 2001

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Abstract

Herbrand's Theorem for G∞Δ, i.e., Gödel logic enriched by the projection operator Δ is proved. As a consequence we obtain a "chain normal form" and a translation of prenex G∞Δ into (order) clause logic, referring to the classical theory of dense total orders with endpoints. A chaining calculus provides a basis for efficient theorem proving.