Abstract
We shall show that the finite Ramsey theorem as a Δ0 schema is provable in IΔ 0+Ω1. As a consequence we get that propositional formulas expressing the finite Ramsey theorem have polynomial-size bounded-depth Frege proofs.
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© 1991 Springer-Verlag Berlin Heidelberg
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Pudlák, P. (1991). Ramsey's theorem in bounded arithmetic. In: Börger, E., Kleine Büning, H., Richter, M.M., Schönfeld, W. (eds) Computer Science Logic. CSL 1990. Lecture Notes in Computer Science, vol 533. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-54487-9_67
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DOI: https://doi.org/10.1007/3-540-54487-9_67
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