Relations between notions of gaplessness for non-Archimedean fields

Open Access
Authors
Publication date 2020
Journal Houston Journal of Mathematics
Volume | Issue number 46 | 4
Pages (from-to) 1017-1031
Organisations
  • Amsterdam University College (AUC)
  • Interfacultary Research - Institute for Logic, Language and Computation (ILLC)
Abstract In this paper, we are studying the relationship between notions of gaplessness for non-Archimedean ordered fields, in particular three generalised Bolzano-Weierstraß properties: the Sikorski property (which fails for saturated fields), the Keisler-Schmerl property, and the weak Bolzano-Weierstraß property introduced by Carl, Galeotti, and Löwe. We show that the weak Bolzano-Weierstraß property is “Bolzano-Weierstraß minus Cauchy completeness” and is equivalent the tree property of the base number of the field. We furthermore improve on a number of results by Carl, Galeotti, and Löwe.
Document type Article
Language English
Other links https://www.math.uh.edu/~hjm/Vol46-4.html
Downloads
hbm832 (Submitted manuscript)
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