trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:; K3 B9 n/ J3 x& O) z5 Y

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. p0 Y; H* E# f  u0 V  ]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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$ ]6 x9 K$ ?+ [* {) ]# L9 f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 \/ N( W9 L/ F  R( ^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。
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, }- G6 G/ s; y% ]6 K6 i! Jfirst time do it...not a bad grade
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" X( f9 K' V/ p[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens
* F+ k  ^. P" w; w# |' C3 S% OP --> Q, 因為 P  所以 Q
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4 P6 O% m* V' g1 D$ G& k8 EModus tollendo tollens% g8 J8 h$ e' }: J9 Y
P --> Q, 取得 ~P  所以 ~Q
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Disjunctive syllogism# ]+ |; }* l/ L5 F0 H3 Z
P or Q, 取得 ~P  所以 Q& E* S$ m" S& @, k6 K% n
P or Q, 取得 ~Q  所以 P
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Conjunctive syllogism  Z& P  o5 j# d; t2 o6 t
~(P & Q), 取得 P  所以 ~Q# d+ q& T" z+ e; K0 B- }/ T
~(P & Q), 取得 Q  所以 ~P
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0 ~1 H2 ]) [1 m$ D& E% _: NHypothetical syllogism
, N6 W# k3 v. v$ ]P --> Q, 取得 Q --> R  所以 P --> R
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0 @4 N5 o! X* S3 k. fDe Morgan's theorem
/ d$ {/ A* X* e1 d; v~(P & Q)  所以 ~P or ~Q
8 c+ ?4 `, S( w  ]+ L~(P or Q)  所以 ~P & ~Q