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Cofinalities of Marczewski Ideals

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Mathematical, Foundational and Computational Aspects of the Higher Infinite

We study the cofinality number of sigma-ideals related to the Marczewski-ideal on the Baire and Cantor space. These ideals are not Borel-generated, and the cofinality number is usually greater than the continuum.

This is joint work with Jrg Brendle and Wolfgang Wohofsky.

This talk is part of the Isaac Newton Institute Seminar Series series.

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