منابع مشابه
Stable Ramsey's Theorem and Measure
The stable Ramsey’s theorem for pairs has been the subject of numerous investigations in mathematical logic. We introduce a weaker form of it by restricting from the class of all stable colorings to subclasses of it that are non-null in a certain effective measure-theoretic sense. We show that the sets that can compute infinite homogeneous sets for non-null many computable stable colorings and ...
متن کاملInvariant Measure, the Recurrence Theorem, and the Ergodic Theorem
converge a.e. to a finite limit, where fs is the characteristic function of the set E. G. D. Birkhoff's Ergodic Theorem asserts this conclusion if T is measure-preserving, in the sense that m(T~1E)=m(E) for each measurable set E. The same conclusion can be asserted under somewhat more general circumstances. We shall say that T admits a finite, equivalent, invariant measure if there is a finite ...
متن کاملAn Upward Measure Separation Theorem
It is shown that almost every language in ESPACE is very hard to approximate with circuits It follows that P BPP implies that E is a measure subset of ESPACE
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ژورنال
عنوان ژورنال: Notre Dame Journal of Formal Logic
سال: 2011
ISSN: 0029-4527
DOI: 10.1215/00294527-2010-039