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arXiv · 0805.2033

On pairs of definable orthogonal families

Pandelis Dodos·Vassilis Kanellopoulos
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Abstract

We introduce the notion of an M-family of infinite subsets of $\nn$ which is implicitly contained in the work of A. R. D. Mathias. We study the structure of a pair of orthogonal hereditary families $\aaa$ and $\bbb$, where $\aaa$ is analytic and $\bbb$ is $C$-measurable and an M-family.

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Pandelis Dodos, Vassilis Kanellopoulos. 2008-05-14. On pairs of definable orthogonal families. https://arxiv.org/abs/0805.2033

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