The cardinal equation 2m=m
G. P. Monro (1974)
Colloquium Mathematicae
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G. P. Monro (1974)
Colloquium Mathematicae
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N. J. S. Hughes (1965-1966)
Compositio Mathematica
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Juhász, I.
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Arthur W. Apter (2013)
Bulletin of the Polish Academy of Sciences. Mathematics
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We investigate two global GCH patterns which are consistent with the existence of a tall cardinal, and also present some related open questions.
Arthur W. Apter (2012)
Fundamenta Mathematicae
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We apply techniques due to Sargsyan to reduce the consistency strength of the assumptions used to establish an indestructibility theorem for supercompactness. We then show how these and additional techniques due to Sargsyan may be employed to establish an equiconsistency for a related indestructibility theorem for strongness.
Arthur W. Apter, Grigor Sargsyan (2007)
Bulletin of the Polish Academy of Sciences. Mathematics
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We show how to reduce the assumptions in consistency strength used to prove several theorems on universal indestructibility.
P. Wojtaszczyk (2006)
Banach Center Publications
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Kipiani, Archil (2015-10-26T11:51:40Z)
Acta Universitatis Lodziensis. Folia Mathematica
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Lorenz Halbeisen (2005)
Extracta Mathematicae
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For infinite dimensional Banach spaces X we investigate the maximal size of a family of pairwise almost disjoint normalized Hamel bases of X, where two sets A and B are said to be almost disjoint if the cardinality of A ∩ B is smaller than the cardinality of either A or B.
Josef Šlapal (1993)
Czechoslovak Mathematical Journal
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Ondrej F. K. Kalenda (2002)
Colloquium Mathematicae
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We prove, among other things, that the space C[0,ω₂] has no countably norming Markushevich basis. This answers a question asked by G. Alexandrov and A. Plichko.