Journal of Mathematical Sciences: Advances and Applications
PERFECTLY NORMAL IS STRONGER THAN OR EQUAL TO
AND IS STRONGER THAN OR EQUAL TO 
WITH THE PARTIAL ORDER 
DEFINED BY 
IFF IS WEAKER THAN OR EQUAL TO 
AND OTHERS[1] P. S. Alexandrov and P. S. Uryshon, On compact topological spaces,
Trudy Matematicheskogo Instituta Imeni V. A. Steklova 31 (1950), 95
pp.
[2] D. E. Cameron, A survey of maximal topological spaces, Topology
Proceedings 2(1) (1977), 11-60.
[3] C. Dorsett, No between topological properties for consecutive
classical separation axioms, Fundamental Journal of Mathematics and
Mathematical Sciences 13(1) (2020), 1-14.
[4] S. Willard, General Topology, Addison-Wesley, 1970.
