arXiv Open Access 2013

$Σ^1_2$ and $Π^1_1$ mad families

Asger Törnquist

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Abstrak

We answer in the affirmative the following question of Jörg Brendle: If there is a $Σ^1_2$ mad family, is there then a $Π^1_1$ mad family?

math.LO

Asger Törnquist

APA MLA BibTeX

Törnquist, A. (2013). $Σ^1_2$ and $Π^1_1$ mad families. https://arxiv.org/abs/1310.3250

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