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Keywords:

  • Involutive quantale;
  • sequent calculus;
  • MacCaull's logic

Abstract

The logic just corresponding to (non-commutative) involutive quantales, which was introduced by Wendy MacCaull, is reconsidered in order to obtain a cut-free sequent calculus formulation, and the completeness theorem (with respect to the involutive quantale model ) for this logic is proved using a new admissible rule. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)