Set theoretical Representations of Integers, I

dc.creatorFerbus-Zanda, Marie
dc.creatorGrigorieff, Serge
dc.date2008-01-02
dc.date.accessioned2026-07-07T08:52:07Z
dc.date.available2026-07-07T08:52:07Z
dc.descriptionWe reconsider some classical natural semantics of integers (namely iterators of functions, cardinals of sets, index of equivalence relations), in the perspective of Kolmogorov complexity. To each such semantics one can attach a simple representation of integers that we suitably effectivize in order to develop an associated Kolmogorov theory. Such effectivizations are particular instances of a general notion of "self-enumerated system" that we introduce in this paper. Our main result asserts that, with such effectivizations, Kolmogorov theory allows to quantitatively distinguish the underlying semantics. We characterize the families obtained by such effectivizations and prove that the associated Kolmogorov complexities constitute a hierarchy which coincides with that of Kolmogorov complexities defined via jump oracles and/or infinite computations. This contrasts with the well-known fact that usual Kolmogorov complexity does not depend (up to a constant) on the chosen arithmetic representation of integers, let it be in any base unary, binary et so on. Also, in a conceptual point of view, our result can be seen as a mean to measure the degree of abstraction of these diverse semantics.
dc.description56 pages
dc.identifierhttps://arxiv.org/abs/0801.0353
dc.identifierhttp://arxiv.org/abs/0801.0353
dc.identifierMathematical Logic Quaterly 52, Number 4 (2006) 375-403
dc.identifierdoi:10.1002/malq.200510040
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/145175
dc.subjectLogic
dc.subjectComputational Complexity
dc.titleSet theoretical Representations of Integers, I
dc.typetext

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