trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:
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/ R! V4 _, E! ~  X" y+ O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:: o+ h& c# F+ R

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3 L% p& g; ?/ e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。
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first time do it...not a bad grade% W( W$ H. R" |1 t" q9 O

2 m3 G9 l! d; s" ?0 G3 P2 H[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens
. e0 ~0 G& _2 ^& D7 ^! iP --> Q, 因為 P  所以 Q
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/ x4 [' K9 H( c; ?1 k! rModus tollendo tollens
5 Y$ ~8 @! r, D% WP --> Q, 取得 ~P  所以 ~Q
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0 V4 r( _2 h  lDisjunctive syllogism1 q) b* I7 f' q8 @- s9 Y
P or Q, 取得 ~P  所以 Q
7 D3 c' V) g  NP or Q, 取得 ~Q  所以 P
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Conjunctive syllogism' K, }' R/ N; v% }% ]3 ^
~(P & Q), 取得 P  所以 ~Q
2 I: p& X' F" t7 {~(P & Q), 取得 Q  所以 ~P
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7 D( V$ L0 I5 B/ K- `7 IHypothetical syllogism0 R3 A+ E( B2 A4 P! r! w
P --> Q, 取得 Q --> R  所以 P --> R
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) t1 I5 s8 @  U2 `De Morgan's theorem- P. W, S+ c/ L6 p1 B, Y5 ~
~(P & Q)  所以 ~P or ~Q8 y3 R. ~- z% g2 J
~(P or Q)  所以 ~P & ~Q