trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:/ h5 ?5 g! O! R% [

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& d+ G! }6 a/ F5 t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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. E( }) }! B5 R- N# L/ R8 m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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; w$ m: b6 W9 {: K3 P3 c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。: L9 }8 q1 E0 t) K
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first time do it...not a bad grade6 m2 g, g+ I0 H# ~0 C5 L4 {
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[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens
6 r' h& A: b( vP --> Q, 因為 P  所以 Q, [; g$ Y  l4 @) n
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Modus tollendo tollens
' ]5 z' w$ l" ]0 sP --> Q, 取得 ~P  所以 ~Q
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Disjunctive syllogism9 \+ B6 M/ |5 f' ?6 E
P or Q, 取得 ~P  所以 Q
$ \5 o* }  v" K: z. I  G' gP or Q, 取得 ~Q  所以 P1 e3 [- C6 P$ g* o

" K. {7 C. z& H" jConjunctive syllogism: i  J' S8 j9 M7 y! C
~(P & Q), 取得 P  所以 ~Q- g3 K  b$ ]9 W% Y
~(P & Q), 取得 Q  所以 ~P
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Hypothetical syllogism
% k0 N( Z9 S- C/ K  mP --> Q, 取得 Q --> R  所以 P --> R
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/ B) U* G7 K9 g, TDe Morgan's theorem
2 M( B6 ~* x% r4 z/ d/ E~(P & Q)  所以 ~P or ~Q
$ O  @" z8 A  C  J  F& l1 E6 u~(P or Q)  所以 ~P & ~Q