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Title: Zastosowania technik macierzy bazowych w zakresie forcingowych częściowych porządków
Authors: Wojciechowska, Anna
Advisor: Plewik, Szymon
Keywords: macierze; teoria zbiorów; matematyka
Issue Date: 2012
Publisher: Katowice : Uniwersytet Śląski
Abstract: The cr-idcal (f°) is associatcd with the Silvcr forcing, see [8]. Also, it constitutes the family of all completely doughnut nuli sets, see [19]. We introduce segment topologies to state some resemblances of (v°) to the family of Ramsey nuli sets. To describe add(v°) we adopt a proof of Base Matrix Lemma. Consistent results are stated, too. Halbeisen’s conjecture cov(v°) = add(v°) is confirmed under the hypothesis t = min{cf(c), r}. The hypothesis cov(v°) = uji implies that (w0) has the ideał type c).
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