Projective Measure Without Projective Baire (Memoirs of the American Mathematical Society) - Softcover

Inhaltsangabe

The authors prove that it is consistent (relative to a Mahlo cardinal) that all projective sets of reals are Lebesgue measurable, but there is a $\Delta^1_3$ set without the Baire property. The complexity of the set which provides a counterexample to the Baire property is optimal.

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