trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:6 j$ `) {* |$ E7 U' i7 p* ^9 v
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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:
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  l7 s! T7 H; J$ w, `李天命d 書聽聞非常正

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+ s& X+ a5 s' `, A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:6 {- Z& F# ]* {6 `9 k5 B2 U

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- n9 ?4 J6 z  f" z1 X睇晒李天命都只得7分..............

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* I8 q; U# w! D& F7 A7 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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first time do it...not a bad grade% m; |1 A4 T. R5 B' k0 H* W
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[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens
" U& l* V5 z) c( F" t6 w! `. xP --> Q, 因為 P  所以 Q
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, D/ {2 y  x( Y4 `# @: y. Z5 KModus tollendo tollens3 M0 G- I6 `9 E, p4 G$ E2 O
P --> Q, 取得 ~P  所以 ~Q8 s1 i$ P5 u! b, K4 X0 D6 s/ G/ [+ e1 o+ u

7 }& |) U% x1 t4 ]# V  jDisjunctive syllogism' ]/ X& S$ |% }1 f& m- X& v
P or Q, 取得 ~P  所以 Q+ `; \9 l( a1 ]8 e) X$ r
P or Q, 取得 ~Q  所以 P# z2 {( b4 X& Y$ [

+ p, E2 j+ I( HConjunctive syllogism
: z6 K& O! W/ m" e' K! X~(P & Q), 取得 P  所以 ~Q# J6 N. N6 G- }; w4 N/ Q
~(P & Q), 取得 Q  所以 ~P; \7 H8 ]$ {. P" J8 Q. |9 J

/ E% N3 P' Y8 u" CHypothetical syllogism
4 n. [: y) e) {/ W3 d9 u* ]P --> Q, 取得 Q --> R  所以 P --> R
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De Morgan's theorem
) x( H! k4 j/ ~  [0 Q~(P & Q)  所以 ~P or ~Q
. Y$ O- A& v* |0 E~(P or Q)  所以 ~P & ~Q