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Preprint Number 1545
1545. Isaac Goldbring A nonstandard take on central sets E-mail: Submission date: 20 December 2018 Abstract: We present the basic theory of central subsets of semigroups from the nonstandard perspective. A key feature of this perspective is the replacement of the algebra of ultrafilters with the algebra of elements of iterated hyperextensions, a technique first employed by Mauro Di Nasso. Mathematics Subject Classification: Keywords and phrases: |
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