trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:' A0 I" J  E7 p/ U7 W" S
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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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6 P) N3 c5 n. z: J0 [1 `: ^3 W7 n李天命d 書聽聞非常正

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' \: `' _7 h7 Q! _0 w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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( t6 y: q! p. M7 ]. w- N# B睇晒李天命都只得7分..............

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0 e- P* @) G& P4 ^& |' N. q+ w7 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。8 T2 t* g; y& u7 D% Y* A

6 D4 n/ y! }  _1 A! d9 `3 h+ Pfirst time do it...not a bad grade
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9 Y1 A& Z, r: r! ^! N  [) W2 c9 K- U[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens
1 c2 p6 A/ K$ {9 t/ d0 u4 SP --> Q, 因為 P  所以 Q6 t, d9 F: o) |* Y. d8 h6 N: b/ R
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Modus tollendo tollens, h6 A& ^( B+ ~& R; c" k+ h2 V+ x- h
P --> Q, 取得 ~P  所以 ~Q
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, A; t" {/ c: x3 y" y, C- H; I9 sDisjunctive syllogism
( {$ c3 g# Y# z' c4 N2 z& @/ y% @P or Q, 取得 ~P  所以 Q0 C3 O, R9 [9 D% k6 Z
P or Q, 取得 ~Q  所以 P
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Conjunctive syllogism
- B1 M( a" S, r" m1 H: B~(P & Q), 取得 P  所以 ~Q" Q$ {2 J8 C7 m5 B
~(P & Q), 取得 Q  所以 ~P
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Hypothetical syllogism
0 G7 _7 C# @' k; ?P --> Q, 取得 Q --> R  所以 P --> R
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+ `# M. A( x( C) k! BDe Morgan's theorem+ X. n* U) ~: \
~(P & Q)  所以 ~P or ~Q0 K% s% p! ?1 r
~(P or Q)  所以 ~P & ~Q