trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:. b' ?" ^0 [7 I0 t: u4 C" ?

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& l* m  f5 `3 t1 L# c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 16:10:0 t$ ]- a6 G) J& [3 g( a  A

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李天命d 書聽聞非常正

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& E/ R* k0 d7 e' R3 ^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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0 P7 i5 G1 r- S7 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。: X  C' i6 L' l) n
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first time do it...not a bad grade, U$ T2 _. U; c! J. M; w! Q
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[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens
: l. U' _" v1 o$ P# ~9 Y# k' o/ SP --> Q, 因為 P  所以 Q  o  a: F6 G5 t/ Z" z8 S% _/ D6 f$ m9 J
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Modus tollendo tollens/ O4 X$ Z8 D3 i( D; d+ }
P --> Q, 取得 ~P  所以 ~Q( x. A8 t/ T$ g# ?  U# u
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Disjunctive syllogism+ c: ]! G  P" X6 g5 ]
P or Q, 取得 ~P  所以 Q, u- {/ z7 c; R2 W! h8 T+ V
P or Q, 取得 ~Q  所以 P
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Conjunctive syllogism
: p2 J" y" f  Q5 _~(P & Q), 取得 P  所以 ~Q! _# ?2 _, [* r  d- J5 l
~(P & Q), 取得 Q  所以 ~P, C6 Y" y5 C8 Y
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Hypothetical syllogism
% q9 _$ t$ X/ A; m0 FP --> Q, 取得 Q --> R  所以 P --> R
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De Morgan's theorem
, ]# f$ {  M8 I" Z; I3 a' m/ F~(P & Q)  所以 ~P or ~Q+ O0 e  K9 v6 x& I9 B, m( d1 s' F% J
~(P or Q)  所以 ~P & ~Q