Mathematical Logic Quarterly 57 (5):470-473 (2011)

Abstract
We investigate two constants cT and rT, introduced by Chaitin and Raatikainen respectively, defined for each recursively axiomatizable consistent theory T and universal Turing machine used to determine Kolmogorov complexity. Raatikainen argued that cT does not represent the complexity of T and found that for two theories S and T, one can always find a universal Turing machine such that equation image. We prove the following are equivalent: equation image for some universal Turing machine, equation image for some universal Turing machine, and T proves some Π1-sentence which S cannnot prove. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Keywords 03B25  Characteristic constant  Kolmogorov complexity  MSC (2010) 03A99
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DOI 10.1002/malq.201010017
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References found in this work BETA

On Interpreting Chaitin's Incompleteness Theorem.Panu Raatikainen - 1998 - Journal of Philosophical Logic 27 (6):569-586.
Algorithmic Information Theory.Michiel van Lambalgen - 1989 - Journal of Symbolic Logic 54 (4):1389-1400.

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