English

The Vitali Covering Theorem in the Weihrauch Lattice

Logic 2018-08-23 v2 Logic in Computer Science

Abstract

We study the uniform computational content of the Vitali Covering Theorem for intervals using the tool of Weihrauch reducibility. We show that a more detailed picture emerges than what a related study by Giusto, Brown, and Simpson has revealed in the setting of reverse mathematics. In particular, different formulations of the Vitali Covering Theorem turn out to have different uniform computational content. These versions are either computable or closely related to uniform variants of Weak Weak K\H{o}nig's Lemma.

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Cite

@article{arxiv.1605.03354,
  title  = {The Vitali Covering Theorem in the Weihrauch Lattice},
  author = {Vasco Brattka and Guido Gherardi and Rupert Hölzl and Arno Pauly},
  journal= {arXiv preprint arXiv:1605.03354},
  year   = {2018}
}

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13 pages