trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:
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3 z% K# j) P! b7 ?* |7 P3 X+ U: C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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0 k$ J4 c0 c5 |) I6 D2 W+ ?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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0 @  Q# x; w0 o4 b/ {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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, ~4 ?8 c: ], W  @first time do it...not a bad grade
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, Q, S9 `4 l# J" K9 M[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens
# }( O1 w+ W$ K- eP --> Q, 因為 P  所以 Q, {5 x! O3 T1 R& Q& d: g, `# q

& A& R" M! `9 f- H! cModus tollendo tollens
8 J7 O! o; M% X1 K8 P9 DP --> Q, 取得 ~P  所以 ~Q
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Disjunctive syllogism
$ v- C7 F$ I( X9 t% R0 oP or Q, 取得 ~P  所以 Q7 e& ?: h4 B9 o# @
P or Q, 取得 ~Q  所以 P# Z6 Q3 I8 X3 |+ D" F" Z3 [

. Q9 N7 B& y! G4 w6 QConjunctive syllogism
( `7 s& t% h' |. Y: T+ g8 M~(P & Q), 取得 P  所以 ~Q
" |* [; @$ m% A: ~2 K~(P & Q), 取得 Q  所以 ~P
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$ h2 t* Z2 k( N+ F  g* KHypothetical syllogism
# H2 D' X* f/ m" L" ~) \" F9 iP --> Q, 取得 Q --> R  所以 P --> R- G' p$ `# u" R- j
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De Morgan's theorem
: S0 @1 o% f. k5 \+ q: t0 U~(P & Q)  所以 ~P or ~Q: E! p# P" [" P0 _. T2 [
~(P or Q)  所以 ~P & ~Q