學生討論區

kwoklap六星鑽石會員 2011-3-26 13:47#1

Given a topology T on R,  where T = {(-a,2a): all a >0} U { (empty) , R}
Find the limit point of {0} with respect to T

我本書個ans係 R, 但我唔明點解會包埋個0

選擇頁數