trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:
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: e' C$ y/ p1 t2 K6 \6 P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:! R( ^  R/ K! R0 N
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李天命d 書聽聞非常正

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; M; b7 ~8 N3 w5 q3 M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:1 i& J5 D/ P& [5 g8 u! n

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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。
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' X# \: t0 e8 R0 V/ j3 K& wfirst time do it...not a bad grade6 g" \8 V. D+ }! C) n1 [

" J" b& |8 {! N9 W[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens
4 K3 o4 ?! a) HP --> Q, 因為 P  所以 Q
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Modus tollendo tollens8 I! j1 o' u1 I$ Y' c2 B4 R
P --> Q, 取得 ~P  所以 ~Q
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, T. m5 W1 \, y0 fDisjunctive syllogism7 W( f' X8 b$ r1 S3 X& K
P or Q, 取得 ~P  所以 Q
% [  }  {9 Z& b( {P or Q, 取得 ~Q  所以 P
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Conjunctive syllogism! ~- w7 A3 ^, h& Y4 Q$ {2 Q
~(P & Q), 取得 P  所以 ~Q7 E8 J+ J2 R* |* m/ A
~(P & Q), 取得 Q  所以 ~P
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: R; l/ x# l) K8 aHypothetical syllogism1 ?) L# S. I; ]" j& [+ }
P --> Q, 取得 Q --> R  所以 P --> R6 ]  h- L: }. A3 S" h
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De Morgan's theorem" Y3 Y" D  d& w/ e1 l
~(P & Q)  所以 ~P or ~Q
( P# k1 _1 T# O( @% v2 P+ O' L~(P or Q)  所以 ~P & ~Q