trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:
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8 o# m! p: I) `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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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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. _8 H. Y4 O5 q- j, X5 S: _睇晒李天命都只得7分..............

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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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1 }/ M( c: h8 _+ y0 ?first time do it...not a bad grade
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9 C$ W; b( v. ]6 D7 _# y, M2 R[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens
4 W) K/ h! P0 k. r: dP --> Q, 因為 P  所以 Q. c, F+ L2 q2 s- q- q& X

6 n; `4 y+ A: P! f0 l! eModus tollendo tollens. O/ d: @# F4 \  q6 I
P --> Q, 取得 ~P  所以 ~Q$ s" _1 x4 }/ s1 A+ p
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Disjunctive syllogism
2 X1 \$ U. V, ]9 OP or Q, 取得 ~P  所以 Q) h; R+ t/ |% j% N
P or Q, 取得 ~Q  所以 P
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Conjunctive syllogism1 R+ m& t: m: J8 {6 A  ~, q; P
~(P & Q), 取得 P  所以 ~Q  L/ f3 {/ }: V3 ?" E
~(P & Q), 取得 Q  所以 ~P
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Hypothetical syllogism
! r6 y( D' F9 j) d2 v+ N' KP --> Q, 取得 Q --> R  所以 P --> R$ l$ N- g, x' g5 }, @* t

9 q# n9 F4 a- U2 UDe Morgan's theorem1 |; d% A9 u" d: T# H
~(P & Q)  所以 ~P or ~Q4 k; u# I- B/ x
~(P or Q)  所以 ~P & ~Q