trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:
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; ?7 f2 s7 ^9 x* }# |$ S3 v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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) k8 R- q6 i5 I& [( D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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( r) o5 ^+ g8 b# i  w4 W- ~+ |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。9 \6 h, v, ~/ V, D
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first time do it...not a bad grade
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[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens0 f/ s- {8 G8 J8 B( c3 u
P --> Q, 因為 P  所以 Q
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Modus tollendo tollens
4 G, C3 ^! k* Z1 @, F1 ^. MP --> Q, 取得 ~P  所以 ~Q
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Disjunctive syllogism' i2 b- `( _/ V& z2 U/ C
P or Q, 取得 ~P  所以 Q
7 ]6 F' [+ M! ^) P! }; }P or Q, 取得 ~Q  所以 P
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% U3 S& |/ w8 f/ p+ g- c( aConjunctive syllogism
& I5 g6 j* Y1 ~~(P & Q), 取得 P  所以 ~Q
. c$ K# V! G' t" U" t~(P & Q), 取得 Q  所以 ~P
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Hypothetical syllogism
8 g- N4 `; o% Y4 d3 ?; h  sP --> Q, 取得 Q --> R  所以 P --> R. _: m* m. H3 z6 m: y& C3 P" g
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De Morgan's theorem
# c' ^) P* i; i  w~(P & Q)  所以 ~P or ~Q
9 T, j$ o" C; w8 V  }( k~(P or Q)  所以 ~P & ~Q