نتایج جستجو برای: classes
تعداد نتایج: 157446 فیلتر نتایج به سال:
Journal:
:The Bulletin of Symbolic Logic
2022
Abstract We show that, assuming the Axiom of Determinacy, every non-selfdual Wadge class can be constructed by starting with those level $\omega _1$ (that is, ones that are closed under Borel preimages) and iteratively applying operations expansion separated differences. The proof is essentially due to Louveau, it yields at same time a new theorem Van Wesep (namely, expressed as result Hausdorf...
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