Elementary numerosity and measures

نویسندگان

  • Vieri Benci
  • Emanuele Bottazzi
  • Mauro Di Nasso
چکیده

In this paper we introduce the notion of elementary numerosity as a special function defined on all subsets of a given set Ω which takes values in a suitable non-Archimedean field and satisfies the same formal properties as finite cardinality. By improving a classic result by C. W. Henson in nonstandard analysis, we prove a general compatibility result between such elementary numerosities and measures. 2010 Mathematics Subject Classification 26E30; 28E15; 26E35; 28E15; 60A05 (primary); (secondary)

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عنوان ژورنال:
  • J. Logic & Analysis

دوره 6  شماره 

صفحات  -

تاریخ انتشار 2014