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Compact spaces, elementary submodels, and the countable chain condition, II
Authors:Franklin D Tall
Institution:Department of Mathematics, University of Toronto, Toronto, Ontario, M5S 3G3, Canada
Abstract:Given a space 〈X,T〉 in an elementary submodel of H(θ), define XM to be XM with the topology generated by View the MathML source. It is established that if XM is compact and satisfies the countable chain condition, while X is not scattered and has cardinality less than the first inaccessible cardinal, then X=XM. If the character of XM is a member of M, then “inaccessible” may be replaced by “1-extendible”.
Keywords:primary  54030  54A35  03E35  03E55  03E75  secondary  54G12
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