*Definition [#rbd94864] A space X is S-closed if every [[semiopen]] cover of X has a finite subfamily the closures of whose members cover X. *Reference [#ib5fde1b] T. Thompson, S?closed spaces, Proc. Amer. Math. Soc. 60 (1976), 335-338.
*Definition [#rbd94864] A space X is S-closed if every [[semiopen]] cover of X has a finite subfamily the closures of whose members cover X. *Reference [#ib5fde1b] T. Thompson, S?closed spaces, Proc. Amer. Math. Soc. 60 (1976), 335-338.