[分析] 測度

看板Math作者 (hips)時間14年前 (2011/03/25 22:46), 編輯推噓1(1推 0噓 1→)
留言2則, 2人參與, 最新討論串1/1
Let (X,P) be a prob space. Let {F_a} denote an uncountable collection of disjoint closed sets. Is it true that there are only countably many F_a that has positive measure? -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 98.154.98.252
推
03/25 23:24, , 1F
是，|{a|P(F_a)>1/n}|有限，其可數聯集至多可數
03/25 23:24, 1F
→
03/25 23:51, , 2F
感謝樓上.
03/25 23:51, 2F
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