Extending the Resolution Method with Sorts

  title={Extending the Resolution Method with Sorts},
  author={Christoph Weidenbach},
In this paper I extend the standard first-order resolution method with special reasoning mechanisms for sorts. Sorts are unary predicates. Literals built from unary predicates are called sort literals. Negative sort literals can be compiled into restrictions of the relevant variables to sorts or can be deleted if they fulfill special conditions. Positive sort literals define the sort-theory. Sorted unification exploits the sort restrictions of variables with respect to the sort theory. As… CONTINUE READING


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