Uniform almost everywhere domination

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We explore the interaction between Lebesgue measure and dominating functions. We show, via both a priority construction and a forcing construction, that there is a function of incomplete degree that dominates almost all degrees. This answers a question of Dobrinen and Simpson, who showed that such functions are related to the proof-theoretic strength of the regularity of Lebesgue measure for $G_δ$ sets. Our constructions essentially settle the reverse mathematical classification of this principle. Revised Nov 13, 2005. Minor corrections made.

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Logic, 03D28, 03D30, 03D60

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http://salesiana.dossiersoluciones.com/handle/123456789/101324

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0506019
 http://arxiv.org/abs/math/0506019

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arXiv