On the Boolean structure generated by -points of
Stanislav Krajči, Peter Vojtáš (1995)
Acta Universitatis Carolinae. Mathematica et Physica
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Displaying similar documents to “Open mappings on extremally disconnected compact spaces”
On the Boolean structure generated by -points of
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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.
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