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Journal Article

Translation of Resolution Proofs into Short First-Order Proofs without Choice Axioms

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de Nivelle,  Hans
Programming Logics, MPI for Informatics, Max Planck Society;

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Citation

de Nivelle, H. (2005). Translation of Resolution Proofs into Short First-Order Proofs without Choice Axioms. Information and Computation, 199, 24-54.


Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-2822-F
Abstract
We present a way of transforming a resolution-style proof containing Skolemization into a natural deduction proof without Skolemization. The size of the proof increases only moderately (polynomially). This makes it possible to translate the output of a resolution theorem prover into a purely first-order proof that is moderate in size.