Projective measure without projective baire
著者
書誌事項
Projective measure without projective baire
（Memoirs of the American Mathematical Society, no. 1298）
American Mathematical Society, c2020
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注記
"September 2020, volume 267, number 1298 (second of 7 numbers)"
Includes bibliographical reference (p. 141-143) and index
内容説明・目次
内容説明
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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