trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:  z% X- c3 }  X/ o% U8 K; V
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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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- l" `7 F6 N, x2 T2 j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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0 O' R; I9 d+ X5 Y# c* b睇晒李天命都只得7分..............

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" C! ?+ U  Y9 p; I5 k8 G1 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。. m+ S) K) i* V, I# V& m8 h7 q
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first time do it...not a bad grade
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9 `6 C6 J% Y3 y( }& ]3 [9 V[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens! i' X4 T4 f0 Z% o( f9 c6 L
P --> Q, 因為 P  所以 Q3 h: k9 E( t9 Q0 z& a5 X( Z
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Modus tollendo tollens
- t1 L  M; @  a3 l5 v" S' V8 J/ dP --> Q, 取得 ~P  所以 ~Q4 P; c- d6 d; {1 N1 ~
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Disjunctive syllogism& b/ U- H: t: t
P or Q, 取得 ~P  所以 Q
1 T9 a3 J  H5 c- x1 `/ K$ fP or Q, 取得 ~Q  所以 P. @/ @8 O- f' Y* c2 I+ g
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Conjunctive syllogism3 U& H( \- \, Q5 j$ U+ O) Z% z
~(P & Q), 取得 P  所以 ~Q" e& \9 D  a; V2 \
~(P & Q), 取得 Q  所以 ~P
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Hypothetical syllogism
" F' O$ B& u3 }" \P --> Q, 取得 Q --> R  所以 P --> R5 r9 d* D/ F: R  V. c. ~0 R6 v

1 Y! g0 g- @* e  b3 [, b% PDe Morgan's theorem  P3 ~& ^6 e5 E6 I7 c; Y; f8 j
~(P & Q)  所以 ~P or ~Q2 }3 \* r9 l, @0 o4 x2 E; T
~(P or Q)  所以 ~P & ~Q