Ideals with bases of unbounded Borel complexity
نویسندگان
چکیده
We present several naturally defined σ–ideals which have Borel bases but, unlike for the classical examples, these bases are not of bounded Borel complexity. We investigate set-theoretic properties of such σ–ideals.
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ورودعنوان ژورنال:
- Math. Log. Q.
دوره 57 شماره
صفحات -
تاریخ انتشار 2011