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作者 plover 在 PTT [ Math ] 看板的留言(推文), 共104則
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3F→:我有寫一篇偏激的讀書心得,導讀的話..10/20 11:25
4F→:"序"就是不錯的導讀10/20 11:26
1F推:看不懂 all but finitely many?10/19 23:31
4F推:對~那也來算一下 inf S 吧10/19 23:59
2F推:(1) 如何證明 |Y^X|=|Y|^|X| ?10/19 00:07
7F推:CH + AC => 2^{N_0}=c10/19 00:21
14F推:那為什麼 c^c = 2^c? 看起來應該是 c^c > 2^c10/19 14:18
15F推:接下來就得證明: c^c > 2^c 以及 2^c >, 然後10/19 14:40
16F→:再說明 c_1 > c_2 & c_2 > c_3 => c_1 > c_3 ...10/19 14:40
2F推:(1 1), F = any field with char(F) = 210/18 02:11
3F→:(0 0)10/18 02:11
4F→:好吧我無聊了,如果char = 0, 如cuttlefish大師所言10/18 02:12
1F→:用簡單的方式說, 考慮 x-y座標系統 x,y 落在0,1之間10/17 14:11
2F→:畫一條斜線x=y, 會把正方形區域割成兩部分10/17 14:12
3F→:左上部分就是 x < y。你可以想像 x < y 的機率10/17 14:13
4F→:= 左上部分面積 / 正方形面積 = 1/210/17 14:13
7F推:很難,就跟樂透彩一樣,那些彩球真的是random嗎 XD10/17 16:43
13F推:幾何直覺上就如thisday大師所言10/17 14:09
14F→:至於嚴格論證..follow Vulpix10/17 14:10
3F推:證明 (-inf,1) is open 就可以了10/06 22:36