trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:
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8 Q: O! v3 ~' y/ z8 v  r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:$ ~+ h$ B9 C/ k' f  E5 M

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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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1 o. `; u# a% H: v# G0 ]/ V睇晒李天命都只得7分..............

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3 q% _: s' s% D7 p0 C% H/ z7 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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first time do it...not a bad grade
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7 ?! |  a% }# `, E. [; Q[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens5 c1 c- w4 W0 J; g. D5 r9 K
P --> Q, 因為 P  所以 Q7 g! \0 j  a4 \1 x3 @
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Modus tollendo tollens
1 t# O0 H4 f4 a: wP --> Q, 取得 ~P  所以 ~Q$ j/ E3 t& ]: Q2 V0 P
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Disjunctive syllogism: i/ N. M( X+ D7 U0 e
P or Q, 取得 ~P  所以 Q
% S: H  }2 `' E1 N) `P or Q, 取得 ~Q  所以 P
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Conjunctive syllogism- o: p2 a# i1 x/ ~  F
~(P & Q), 取得 P  所以 ~Q3 ]2 ^+ E. A5 N
~(P & Q), 取得 Q  所以 ~P' {. j& k5 w& {  ~" y
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Hypothetical syllogism
2 }- \8 Z) L5 P; ]' d' v) \$ dP --> Q, 取得 Q --> R  所以 P --> R
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. ]$ ], ~( }# y+ ]: D: Q& y' [0 pDe Morgan's theorem, `) Y& n+ Q, I# d# k
~(P & Q)  所以 ~P or ~Q& R2 H* n& ?6 H: R0 F
~(P or Q)  所以 ~P & ~Q