A new construction of non-constructible subset of ω
Ronald Jensen, Håvard Johnsbråten (1974)
Fundamenta Mathematicae
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Ronald Jensen, Håvard Johnsbråten (1974)
Fundamenta Mathematicae
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Cleary, Sean, Taback, Jennifer (2003)
The New York Journal of Mathematics [electronic only]
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Lajos Soukup (1990)
Commentationes Mathematicae Universitatis Carolinae
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Kurepa, Đuro (1985)
Publications de l'Institut Mathématique. Nouvelle Série
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Đuro Kurepa (1988)
Publications de l'Institut Mathématique
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V. Gregori, J. Ferrer (1982)
Stochastica
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R. Stoltenberg characterized in [2] those quasi-uniformities which are quasi-pseudometrizable, as well as those quasi-metric spaces which have a quasi-metric completion. In this paper we follow Stoltenberg's work by giving characterizations for quasi-metrizability and quasi-metric completion for a particular type of quasi-uniform spaces, the Pervin's quasi-uniform space.
Keith Devlin (1983)
Fundamenta Mathematicae
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