Distributivity and representability
Roman Sikorski (1959)
Fundamenta Mathematicae
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Displaying similar documents to “On the Boolean structure generated by -points of ”
Distributivity and representability
On Monk’s questions
Saharon Shelah (1996)
Fundamenta Mathematicae
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We deal with Boolean algebras and their cardinal functions: π-weight π and π-character πχ. We investigate the spectrum of π-weights of subalgebras of a Boolean algebra B. Next we show that the π-character of an ultraproduct of Boolean algebras may be different from the ultraproduct of the π-characters of the factors.
Representation and distributivity of Boolean algebras
Roman Sikorski (1961)
Colloquium Mathematicum
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Boolean matrices, subalgebras and automorphisms of complete Boolean algebras
Bohuslav Balcar, Petr Štěpánek (1977)
Fundamenta Mathematicae
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Open mappings on extremally disconnected compact spaces
Egbert Thümmel (2006)
Acta Universitatis Carolinae. Mathematica et Physica
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Boolean algebras admitting a countable minimally acting group
Aleksander Błaszczyk, Andrzej Kucharski, Sławomir Turek (2014)
Open Mathematics
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The aim of this paper is to show that every infinite Boolean algebra which admits a countable minimally acting group contains a dense projective subalgebra.