[心得] 邏輯練習題
若p則q True
若非q則非p True
但是若非p則非q false
舉例說明:
如果咖啡中有某種味道,那咖啡豆中一定有
如果咖啡豆中沒有某種味道,那咖啡中也不會有
但是不代表咖啡中沒有某種味道,咖啡豆中就一定沒有。
--
他們的話在黃昏裡忽前忽後地漂流著, 沒有一點意義,
而有意義的東西卻是不能用言語表達的, 而且你也不能談的
摘自雷馬克的生死存亡的年代
--
※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 95.115.20.182
※ 文章網址: https://www.ptt.cc/bbs/MenTalk/M.1443031182.A.EC8.html
推
09/24 02:05, , 1F
09/24 02:05, 1F
→
09/24 02:09, , 2F
09/24 02:09, 2F
推
09/24 02:20, , 3F
09/24 02:20, 3F
→
09/24 02:22, , 4F
09/24 02:22, 4F
推
09/24 02:32, , 5F
09/24 02:32, 5F
推
09/24 02:34, , 6F
09/24 02:34, 6F
推
09/24 02:40, , 7F
09/24 02:40, 7F
→
09/24 02:46, , 8F
09/24 02:46, 8F
噓
09/24 02:54, , 9F
09/24 02:54, 9F
→
09/24 03:39, , 10F
09/24 03:39, 10F
→
09/24 03:39, , 11F
09/24 03:39, 11F
推
09/24 04:05, , 12F
09/24 04:05, 12F
→
09/24 07:58, , 13F
09/24 07:58, 13F
推
09/24 08:47, , 14F
09/24 08:47, 14F
推
09/24 09:18, , 15F
09/24 09:18, 15F
推
09/24 09:24, , 16F
09/24 09:24, 16F
推
09/24 10:53, , 17F
09/24 10:53, 17F
→
09/24 10:55, , 18F
09/24 10:55, 18F
→
09/24 10:56, , 19F
09/24 10:56, 19F
→
09/24 10:57, , 20F
09/24 10:57, 20F
→
09/24 10:58, , 21F
09/24 10:58, 21F
→
09/24 11:56, , 22F
09/24 11:56, 22F
→
09/24 11:57, , 23F
09/24 11:57, 23F
推
09/24 13:18, , 24F
09/24 13:18, 24F
→
09/24 14:12, , 25F
09/24 14:12, 25F
討論串 (同標題文章)