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Descriptive classes of sets and topological functors. (English) Zbl 0887.46041
Ukr. Math. J. 47, No. 3, 474-476 (1995) and Ukr. Mat. Zh. 47, No. 3, 408-410 (1995).
Summary: It is proved that the image of a normal functor from Stone-Cech compactification of the projective class of sets also belongs to this class.

MSC:
46M15 Categories, functors in functional analysis
46M10 Projective and injective objects in functional analysis
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