*Definition [#yc5bfd7c]
Every [[sg-open]] cover has a finite subcover.

*Reference [#y9e5e5e0]
R. Devi, K. Balachandran and H. Maki, ''Semigeneralized closed and generalized closed maps'', Mem. Fac. Sci. Kochi Univ. Ser.A (Maths), 14 (1993), 41-54.
S.B. Navalagi, ''Definition bank in general topology'', http://at.yorku.ca/i/d/e/b/75.htm