Definable Davies' Theorem

Asger Tornquist; William Weiss

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arXiv · 0711.0162

Definable Davies' Theorem

Asger Tornquist·William Weiss

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Abstract

We prove the following analogue of a Theorem of R.O. Davies: Every $Σ^1_2$ function $f:\R\times\R\to\R$ can be represented as a sum of rectangular $Σ^1_2$ functions if and only if all reals are constructible.

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BibTeX RIS

Asger Tornquist, William Weiss. 2009-07-04. Definable Davies' Theorem. https://arxiv.org/abs/0711.0162

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