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Baire Sets, Borel Sets and Some Typical Semi-Continuous Functions
Published online by Cambridge University Press: 22 January 2016
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Recently Hing Tong [3], M. Katētov [4] and C. H. Dowker [2] have established two sorts of insertion theorems for semi-continuous functions defined on normal and countably paracompact normal spaces. The purpose of this paper is to give the insertion theorem for some typical semi-continuous functions defined on a T-space. The relations between Baire sets and Borel sets in some topological spaces are also studied.
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- Copyright © Editorial Board of Nagoya Mathematical Journal 1954
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