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A Čech function in ZFC

Volume 193 / 2007

Fred Galvin, Petr Simon Fundamenta Mathematicae 193 (2007), 181-188 MSC: 54A05, 54G20, 04A20. DOI: 10.4064/fm193-2-6

Abstract

A nontrivial surjective Čech closure function is constructed in ZFC.

Authors

Fred GalvinDepartment of Mathematics
University of Kansas
1460 Jayhawk Blvd.
Lawrence, KS 66045-7523, U.S.A.
e-mail
Petr SimonFaculty of Mathematics and Physics
Charles University
Malostranské nám. 25
11800 Praha 1, Czech Republic
e-mail

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