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The Pixley-Roy topology on spaces of subsets. (English) Zbl 0372.54006
Set-theor. Topol., Vol. dedic. to M. K. Moore, 111-134 (1977).

MSC:
54B20 Hyperspaces in general topology
54A25 Cardinality properties (cardinal functions and inequalities, discrete subsets)
54E30 Moore spaces
54D35 Extensions of spaces (compactifications, supercompactifications, completions, etc.)