Stable families of analytic sets

Volume 98 / 2003

Pandelis Dodos Colloquium Mathematicum 98 (2003), 277-281 MSC: Primary 03E15. DOI: 10.4064/cm98-2-11


We give a different proof of the well-known fact that any uncountable family of analytic subsets of a Polish space with the point-finite intersection property must contain a subfamily whose union is not analytic. Our approach is based on the Kunen–Martin theorem.


  • Pandelis DodosNational Technical University of Athens
    Department of Mathematics
    Zografou Campus
    157 80 Athens, Greece

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