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In this paper a new method is proposed for mechanically proving theorems in the local theory of space curves. The method is based on Ritt-Wu’s well-ordering principle of ordinary differential polynomials, Clifford algebraic representation of Euclidean space and equation set solving in Clifford...
Many problems in mathematics, logic, computer science, and engineering can be reduced to the problem of testing positiveness of polynomials (over real numbers). Although the problem is decidable (shown by Tarski in 1930), the general decision methods are not always practically applicable because...
The language of signed formulas offers a first-order classical logic framework for automated reasoning in multiple-valued logics. It is sufficiently general to include both annotated logics and fuzzy operator logics. Signed resolution unifies the two inference rules of annotated logics, thus...
We describe a nonconstructive extension to primitive recursive arithmetic, both abstractly and as implemented on the Boyer-Moore prover. Abstractly, this extension is obtained by adding the unbounded µ operator applied to primitive recursive functions; doing so, one can define the Ackermann...
This paper documents the design, competing systems, results, and conclusions of the CADE-14 ATP System Competition (CASC-14).
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