In this paper, we obtain the following results;Theorem 1 If every irresolute image of a Ti-Space Xin any Ti-Space is closed, then X is extremally disconnected. (i=2(1/3), 2(2/3), 3, 3(1/2), 4, 5, 6)Theorem 2 A Ti-space X is S-Closed if and only if the irresolute image of X in any Ti-Space is Closed. (i = 2(1/3), 2(2/3), 3, 3(1/2), 4, 5) . |