*Definition [#weba5270]
-


*Property [#c9d69be7]
-T_2 ⇔ [[T_1]]+[[R_1]]. [2]
-T_2 ⇒ [[nearly T_2]]. [3]
-T_2 ⇒ [[λ-T_2]]. [4]
-T_2 ⇒ [[KC]]. [5]
-T_2 ⇒ [[sober]]. [6]
*Reference [#a71bd87f]
+ ???
+Dorsett, C., ''Images and hyperspaces of s-essentially T_1 and s-essentially T_2 spaces and semitopological properties.'' (Serbo-Croatian summary) Glas. Mat. Ser. III 21(41) (1986), no. 2, 415–422.
+Przemski, M., ''Nearly T_i-continuous functions and some separation axioms.'' (Serbo-Croatian summary), Glas. Mat. Ser. III 21(41) (1986), no. 2, 431–435.
+Caldas Miguel, Jafari Saeid, Navalagi Govindappa, ''More on λ-closed sets in topological spaces.'',Rev. Colombiana Mat. 41 (2007), no. 2, 355-369.
+Wilansky Albert, ''Between T_1 and T_2''., Amer. Math. Monthly 74 (1967) 261-266.
+M.L. Colasante and D. Van der Zypen, ''Minimal R_1, minimal regular and minimal presober topologies'', Revista Notas de Matemática, Vol.5(1),No. 275, 2009, pp.73-84