oaioai:CiteSeerX.psu:10.1.1.6.2996

The Undecidability of k-Provability

Abstract

The k-provability problem is, given a first order formula φ and an integer k, to determine if φ has a proof consisting of k or fewer lines (i.e., formulas or sequents). This paper shows that the k-provability problem for the sequent calculus is undecidable. Indeed, for every r.e. srt X..

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oaioai:CiteSeerX.psu:10.1.1.6.2996Last time updated on 10/22/2014

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