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On the Complexity of the Numerically Definite Syllogistic and Related Fragments

Ian Pratt-Hartmann

cs.LOarXiv:cs/0701039

Abstract

In this paper, we determine the complexity of the satisfiability problem for various logics obtained by adding numerical quantifiers, and other constructions, to the traditional syllogistic. In addition, we demonstrate the incompleteness of some recently proposed proof-systems for these logics.

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