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看板Math作者 (批踢踢基金)時間20年前 (2005/07/11 22:19), 編輯推噓0(000)
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Let A and B be connected sets in a metric space and A-B is separated. Also, suppose A-B = S∪T, where cl(S)∩T = S∩cl(T) = ψ. Show that B∪S or B∪T is connected. -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 219.68.227.219
文章代碼(AID): #12qd_lGb (Math)