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Mon, 03 Apr 2000 00:00:00 +0200Mon, 03 Apr 2000 00:00:00 +0200Tactics for the Improvement of Problem Formulation in Resolution-Based Theorem Proving
https://kluedo.ub.uni-kl.de/frontdoor/index/index/docId/335
We transform a user-friendly formulation of aproblem to a machine-friendly one exploiting the variabilityof first-order logic to express facts. The usefulness of tacticsto improve the presentation is shown with several examples.In particular it is shown how tactical and resolution theoremproving can be combined.Manfred Kerber; Axel Präckleinpreprinthttps://kluedo.ub.uni-kl.de/frontdoor/index/index/docId/335Mon, 03 Apr 2000 00:00:00 +0200Some Aspects of Analogy in Mathematical Reasoning
https://kluedo.ub.uni-kl.de/frontdoor/index/index/docId/353
An important research problem is the incorporation of "declarative" knowledge into an automated theorem prover that can be utilized in the search for a proof. An interesting pro-posal in this direction is Alan Bundy's approach of using explicit proof plans that encapsulatethe general form of a proof and is instantiated into a particular proof for the case at hand. Wegive some examples that show how a "declarative" highlevel description of a proof can be usedto find proofs of apparently "similiar" theorems by analogy. This "analogical" information isused to select the appropriate axioms from the database so that the theorem can be proved.This information is also used to adjust some options of a resolution theorem prover. In orderto get a powerful tool it is necessary to develop an epistemologically appropriate language todescribe proofs, for which a large set of examples should be used as a testbed. We presentsome ideas in this direction.Manfred Kerberarticlehttps://kluedo.ub.uni-kl.de/frontdoor/index/index/docId/353Mon, 03 Apr 2000 00:00:00 +0200