arXiv Open Access 2019

Definable selector for $\bfΔ^0_2$ sets modulo countable

Vladimir Kanovei

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Abstrak

A set is effectively chosen in every class of $\bfΔ^0_2$ sets modulo countable.

math.LO

Vladimir Kanovei

APA MLA BibTeX

Kanovei, V. (2019). Definable selector for $\bfΔ^0_2$ sets modulo countable. https://arxiv.org/abs/1910.00926

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