*Definition [#a2f5c671]
-A topological space (X, τ) is called a semi-T_{1/2} space if every [[sg-closed set>semi-generalized closed]] is [[semi-closed]]

*Property [#jffbbe06]
-Every semi-T_{1/2} space is a [[semi-T_0 space>semi-T_0]].

*Reference [#peffa3e0]
-Bhattacharyya Paritosh, Lahiri B. K., ''Semigeneralized closed sets in topology.'', Indian J. Math. 29 (1987), no. 3, 375-382 (1988).