Abstract
Our aim is to compare different methods of cut-elimination. For this aim we need logic-free axioms. The original formulation of LK by Gentzen also served the purpose of simulating Hilbert-type calculi and deriving axiom schemata within fixed proof length. Below we show that there exists a polynomial transformation from an LK-proof with arbitrary axioms of type A ⊢ A to atomic ones.
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- 1.
Note that, in [16] we chose alternative (1).
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Baaz, M., Leitsch, A. (2011). Complexity of Cut-Elimination. In: Methods of Cut-Elimination. Trends in Logic, vol 34. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0320-9_4
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DOI: https://doi.org/10.1007/978-94-007-0320-9_4
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