trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:
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咪就係話你醒過頭,所以吾會明其他人吾明D咩囉

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guswan

Originally posted by trista_cheong at 2006-10-18 16:10:
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李天命d 書聽聞非常正

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睇晒李天命都只得7分..............

pigcat

9分ja~~

trista_cheong

Originally posted by guswan at 2006-10-18 10:26 PM:
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睇晒李天命都只得7分..............

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7 分好多ga la wor 你仲想點?

Chingy

0-13分者为优秀（上限10％）；14－19分者为良好（20％）；20－25分者为中等（30％）；26－48分者为不佳（下限40％）。你的分数是13分，属于优秀。4 I. ]- x- ?# d, B! V6 V

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[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens
+ F2 r  }2 P( _. C# {P --> Q, 因為 P  所以 Q; ?( U5 I; j7 c9 E0 l) n

8 s/ b# q. O. m) C  dModus tollendo tollens# L# ?1 T, M4 a3 M* ]  a
P --> Q, 取得 ~P  所以 ~Q+ Y- d% X/ [& g; E; j
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Disjunctive syllogism4 }4 X0 K7 U" |8 D
P or Q, 取得 ~P  所以 Q
& Y* `, g" U4 Z4 RP or Q, 取得 ~Q  所以 P
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4 G. M" L# H& VConjunctive syllogism; H8 Z) r: @2 {2 T0 n
~(P & Q), 取得 P  所以 ~Q7 H2 N; F9 O. \) V8 w, Z% n) D
~(P & Q), 取得 Q  所以 ~P
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; u3 d! \/ e0 Y9 w9 J' n/ n7 SHypothetical syllogism
9 x: i9 i2 }* `9 qP --> Q, 取得 Q --> R  所以 P --> R* X3 X/ y: v: R3 P" g; L
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De Morgan's theorem
  _, O: C; e) ^~(P & Q)  所以 ~P or ~Q
1 a$ V( K& ^  A- N3 Y~(P or Q)  所以 ~P & ~Q