On some properties of Hurewicz, Menger, and Rothberger
Arnold Miller, David Fremlin (1988)
Fundamenta Mathematicae
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Arnold Miller, David Fremlin (1988)
Fundamenta Mathematicae
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Tall, F. D.
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J. Roitman (1979)
Fundamenta Mathematicae
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Murray Bell (1981)
Fundamenta Mathematicae
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Nina M. Roy (1989)
Publicacions Matemàtiques
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In this expository paper it is shown that Martin's Axiom and the negation of the Continuum Hypothesis imply that the product of ccc spaces is a ccc space. The Continuum Hypothesis is then used to construct the Laver-Gavin example of two ccc spaces whose product is not a ccc space.
Kenneth Kunen, Franklin Tall (1979)
Fundamenta Mathematicae
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J. Paris, G. Mills (1979)
Fundamenta Mathematicae
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T. Przymusiński, F. Tall (1974)
Fundamenta Mathematicae
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