自然演繹法
不知如何做起...
http://i.imgur.com/awA7LTB.jpg
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※ 文章網址: https://www.ptt.cc/bbs/logic/M.1428936335.A.BDD.html
※ 編輯: CyCls (140.112.4.176), 04/13/2015 22:47:33
推
04/13 23:05, , 1F
04/13 23:05, 1F
推
04/13 23:10, , 2F
04/13 23:10, 2F
→
04/13 23:11, , 3F
04/13 23:11, 3F
→
04/13 23:12, , 4F
04/13 23:12, 4F
→
04/13 23:13, , 5F
04/13 23:13, 5F
→
04/13 23:14, , 6F
04/13 23:14, 6F
→
04/13 23:16, , 7F
04/13 23:16, 7F
推
04/13 23:23, , 8F
04/13 23:23, 8F
→
04/13 23:25, , 9F
04/13 23:25, 9F
→
04/13 23:25, , 10F
04/13 23:25, 10F
→
04/15 16:35, , 11F
04/15 16:35, 11F
推
04/15 17:28, , 12F
04/15 17:28, 12F
→
04/15 17:29, , 13F
04/15 17:29, 13F
→
04/15 17:30, , 14F
04/15 17:30, 14F
→
04/15 17:30, , 15F
04/15 17:30, 15F
→
04/15 17:30, , 16F
04/15 17:30, 16F