
doi: 10.1007/bf00381144
The main contribution of the paper is the goal-oriented hierarchical deduction proof procedure. The procedure proves a theorem by producing not just one but all the acceptable resolvents from the goal clause. There is a set of completeness-preserving refinements to constrain the generation of the irrelevant resolvents. The paper describes a ground hierarchical deduction procedure applicable to propositional logic and then extends this procedure for first-order logic. A semantically guided hierarchical deduction and a partial set of support strategies are defined as two methods to reduce the search space. The implementation results are included. The authors give an outline of the implemented procedure (HD-Prover) and a list of automatically proved theorems.
Mechanization of proofs and logical operations, hierarchical deduction, resolution unification, automated theorem proving, goal-oriented deduction, Theorem proving (deduction, resolution, etc.)
Mechanization of proofs and logical operations, hierarchical deduction, resolution unification, automated theorem proving, goal-oriented deduction, Theorem proving (deduction, resolution, etc.)
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