trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:
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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:$ v& G+ ~. ]& w6 n
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! a% g! J# \1 N李天命d 書聽聞非常正

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& f0 w2 H7 @: T) k. [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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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。. ]6 v  S+ O$ V5 H: J8 v! B
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first time do it...not a bad grade( g1 G; t+ D8 U* P6 S5 U
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[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens
1 n, S) p; y& ?P --> Q, 因為 P  所以 Q# i2 \3 q- c3 g7 S

% s5 h$ S3 y, Y! M  \5 j: mModus tollendo tollens7 w. F0 `0 Z( k% z0 }( _; r& I  Z
P --> Q, 取得 ~P  所以 ~Q8 i7 k. Y. X4 ?4 j4 Q

8 F) r( C, w% T# h3 q) }, g$ }Disjunctive syllogism
' N1 r% e- [8 K) b) p$ B2 _P or Q, 取得 ~P  所以 Q- ^, l/ i8 ?6 S" z
P or Q, 取得 ~Q  所以 P
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Conjunctive syllogism) b: \* N, w( M4 Z! l' z- @6 X& |
~(P & Q), 取得 P  所以 ~Q
6 S( U  h4 c; J- E* o, C~(P & Q), 取得 Q  所以 ~P
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Hypothetical syllogism
2 ^) O" l) O/ g) F1 h8 Y# rP --> Q, 取得 Q --> R  所以 P --> R
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De Morgan's theorem- R) \! \6 i$ T8 r
~(P & Q)  所以 ~P or ~Q
( o: c% T2 o. y8 Q2 z9 X' v4 r~(P or Q)  所以 ~P & ~Q