Abstract
The quadruplet $(C(f), Q(f), E(f), A(f))$ is characterized, where $C(f)$, $Q(f)$, $E(f)$ and $A(f)$ are the sets of all continuity, quasicontinuity, upper and lower quasicontinuity and cliquishness points of a real function $f$ of real variable, respectively.
Citation
Ján Borsík. "Points of Continuity, Quasicontinuity, Cliquishness, and Upper and Lower Quasicontinuity." Real Anal. Exchange 33 (2) 339 - 350, 2007/2008.
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