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Axiomatizing proof tree concepts in Bounded Arithmetic

Abstract

We construct theories of Cook-Nguyen style two-sort bounded arithmetic whose provably total functions are exactly those in LOGCFL and LOGDCFL. Axiomatizations of both theories are based on the proof tree size characterizations of these classes. We also show that our theory for LOGCFL proves a certain formulation of the pumping lemma for context-free languages

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This paper was published in Dagstuhl Research Online Publication Server.

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