trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:2 B, g2 Z8 E6 [: @0 o+ d
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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:+ K3 B+ y! b6 i5 q$ Y0 D
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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:1 I% N- }7 c, n; j7 T/ [  H0 i4 v

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4 M5 W4 S+ z) i7 J9 ~睇晒李天命都只得7分..............

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5 f: p4 u2 I. g& u+ I8 r( r* f7 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。3 H$ @( s1 ]: E6 M

5 _4 y6 F$ H3 T0 t, Z6 W# E- Pfirst time do it...not a bad grade- Z" j! r) H% D' w$ t0 Z
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[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens
# J# k/ P+ j, ^4 T+ ]P --> Q, 因為 P  所以 Q, r' \6 w7 |; b: K5 `0 g

4 I- j* F4 i  M2 R* w) ]) kModus tollendo tollens
5 r$ \* J3 S6 Z9 eP --> Q, 取得 ~P  所以 ~Q; M5 N2 B7 |9 a& m) ~

/ j1 Z2 r: X8 q! Q5 ^9 ^" TDisjunctive syllogism
5 T9 t) f& l; i+ SP or Q, 取得 ~P  所以 Q* U( _7 K1 {- a. P
P or Q, 取得 ~Q  所以 P
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& }* j( V- L% ?2 m# n: y# rConjunctive syllogism# }' j0 c' h: k' Q& \
~(P & Q), 取得 P  所以 ~Q8 `6 M7 \0 h: j0 U. w: z
~(P & Q), 取得 Q  所以 ~P
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Hypothetical syllogism
& K' g- S0 P0 c6 RP --> Q, 取得 Q --> R  所以 P --> R0 N4 u) H* q3 h! `8 D' z" w1 ~

3 V7 t, b- N4 z4 TDe Morgan's theorem' W9 R# C( J" D9 S# g" I! `
~(P & Q)  所以 ~P or ~Q2 I/ z; P% M: L. ~/ M' G5 @
~(P or Q)  所以 ~P & ~Q