trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:5 y9 a& ?" o1 S$ w0 G) x9 ~
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2 b: O  V2 B' _- _' }. k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 16:10:0 j4 c+ R% G2 t4 x" o" N

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( \" E9 Y, x+ Z+ O" G3 B李天命d 書聽聞非常正

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: I1 v: w! _, I$ B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:& Y7 A5 b. u" L

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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。' f! ]: G7 `" ]% X; L
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first time do it...not a bad grade* Q% h+ ^0 Q  p! w. _& a0 u0 Z

4 R- C* T& _4 w0 i+ ~[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens
& X* \/ o2 c/ F5 N8 f# |/ m- T* ]P --> Q, 因為 P  所以 Q3 I/ c! r8 g3 Z6 E: N, {
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Modus tollendo tollens
! Z# J! A! ?/ p. A  E- k3 PP --> Q, 取得 ~P  所以 ~Q) }, P, d9 G) x6 |8 B
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Disjunctive syllogism
" F" r/ @* @- x# `% S. `P or Q, 取得 ~P  所以 Q$ }6 A" C. f9 P% G6 X  z
P or Q, 取得 ~Q  所以 P
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Conjunctive syllogism8 E  ~5 n" h% p& R; n& g. Z! o
~(P & Q), 取得 P  所以 ~Q, d( s* X& i0 `2 Y
~(P & Q), 取得 Q  所以 ~P
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; \, N( n2 U; T8 z: ^Hypothetical syllogism/ v: ~. Z/ M" v7 K* f1 c
P --> Q, 取得 Q --> R  所以 P --> R
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0 `7 ~" e# I0 FDe Morgan's theorem- {) W" M* d! V
~(P & Q)  所以 ~P or ~Q
% c+ L% Y6 u4 d~(P or Q)  所以 ~P & ~Q