trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:- Q/ s4 V8 V% l) N- b7 F
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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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( T+ S9 I* X4 E+ R& ?李天命d 書聽聞非常正

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0 Q7 q+ M3 `7 `/ j+ `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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0 S3 J" m1 `" v3 F# s睇晒李天命都只得7分..............

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! h2 r, j( \" U  R% B7 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。+ h3 P3 k3 W3 N* l6 q$ \
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first time do it...not a bad grade) u7 I. f% _0 P2 u9 H+ q, L
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[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens! _& W' O9 C2 b& _4 `
P --> Q, 因為 P  所以 Q1 W. ^, I( b* V; Y% e& @
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Modus tollendo tollens6 c8 \) }' H. T( r: j+ V# H. e( u9 I
P --> Q, 取得 ~P  所以 ~Q4 s2 W9 b! |  }

  u, p  P, \8 x- }Disjunctive syllogism
& _9 m% X3 B& a! y6 j4 BP or Q, 取得 ~P  所以 Q) B4 }5 f& f- W% H7 |
P or Q, 取得 ~Q  所以 P
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Conjunctive syllogism
5 i6 t1 T3 H2 C5 Y5 g, \~(P & Q), 取得 P  所以 ~Q0 T8 N: R9 l. d9 P3 L
~(P & Q), 取得 Q  所以 ~P! \$ ?$ V8 f& G# y8 a/ x
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Hypothetical syllogism
1 \  g# y0 S  zP --> Q, 取得 Q --> R  所以 P --> R
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6 v# g% L$ z+ v, c2 I8 s% x8 {De Morgan's theorem. H( h, g; H9 W' J; q5 }% _
~(P & Q)  所以 ~P or ~Q7 O( S: V1 R$ t, W
~(P or Q)  所以 ~P & ~Q