trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:* ]8 I; X2 P8 Y& ?

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$ d* U( w/ ?1 V$ X( D5 B! ?1 X5 H! a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:: ?4 N4 h. b9 k9 c+ j

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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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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。2 z3 S% T" ^* [6 }

+ v( I1 e0 Y+ F& ?first time do it...not a bad grade
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. U) q" X2 [" b" J0 b1 Y6 ?$ {[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens# w$ Q: K6 c: r8 L; H
P --> Q, 因為 P  所以 Q
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, o- c, d& L9 W) t* ^/ o5 zModus tollendo tollens  {, G' }( x  A
P --> Q, 取得 ~P  所以 ~Q8 N; c% X+ a" d3 K

& y3 @; M) T5 a  a; ODisjunctive syllogism: Y0 I" H! l$ F
P or Q, 取得 ~P  所以 Q
- [: f' E/ P0 D/ @P or Q, 取得 ~Q  所以 P4 n" I6 F$ h3 O

/ I4 D+ I+ u, _5 h. Y& oConjunctive syllogism" c7 ?! |1 y% V. t
~(P & Q), 取得 P  所以 ~Q
6 e- E+ j- [, o4 L2 U, \, b~(P & Q), 取得 Q  所以 ~P! B7 a) ?1 q" p; @' s! S; A! M" n, `' X

! l7 O4 W; s$ P% l# |4 uHypothetical syllogism; t6 a: f$ m: {" r* w& U  r2 y
P --> Q, 取得 Q --> R  所以 P --> R/ }) Y) |9 S. }: b

! U' d: {  q. T0 M+ Y$ D- |De Morgan's theorem0 x9 u: V$ e6 ?" M7 W; `
~(P & Q)  所以 ~P or ~Q
1 n: y3 H  n1 d9 L2 ?~(P or Q)  所以 ~P & ~Q