Paranormal space

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Separation axioms
in topological spaces
Kolmogorov classification
T0  (Kolmogorov)
T1  (Fréchet)
T2  (Hausdorff)
T2½ (Urysohn)
completely T2  (completely Hausdorff)
T3  (regular Hausdorff)
T3½ (Tychonoff)
T4  (normal Hausdorff)
T5  (completely normal
 Hausdorff)
T6  (perfectly normal
 Hausdorff)

In mathematics, in the realm of topology, a paranormal space( Nyikos 1984 ) is a topological space in which every countable discrete collection of closed sets has a locally finite open expansion.

See also

References