trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:1 C. ~, Y- e; L. @9 @
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% G- x9 \  D5 X' ]/ ?- b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:. o3 E( i6 Z# L- i  A+ t

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' N# Z" M* x9 C  a7 \6 c+ }李天命d 書聽聞非常正

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. j7 }& w' ~( N8 B' I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:1 z3 r+ M/ l2 f  A# B! d- L* H

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睇晒李天命都只得7分..............

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" ~, t; b9 d- ]6 Z  r3 ?$ f9 q- T7 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。+ u% s( \5 H/ b9 R
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first time do it...not a bad grade) a8 R# _: x. R2 P
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[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens
: c' J6 v. X! M" g) |$ jP --> Q, 因為 P  所以 Q
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9 d5 s8 i+ j* r7 `7 C; h. ]Modus tollendo tollens4 B( t8 F) @9 E  ?
P --> Q, 取得 ~P  所以 ~Q' z  W5 g3 _2 U# ~& f% W: \+ b: z7 {

. v# U5 I. R: v9 m8 ZDisjunctive syllogism
, ?! N1 x0 |3 |P or Q, 取得 ~P  所以 Q* [+ d/ w  a7 P# P* W
P or Q, 取得 ~Q  所以 P
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Conjunctive syllogism) U( x5 h4 P. i1 X+ W; G1 p
~(P & Q), 取得 P  所以 ~Q
! O0 X7 p! c2 {9 S; s~(P & Q), 取得 Q  所以 ~P
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5 d! J: N0 A0 r2 VHypothetical syllogism4 q1 N! }& [9 e- ^
P --> Q, 取得 Q --> R  所以 P --> R
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De Morgan's theorem2 q4 \9 i' y+ M/ U) y
~(P & Q)  所以 ~P or ~Q9 \% [! S5 k6 Z
~(P or Q)  所以 ~P & ~Q