trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:
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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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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:6 i8 V: o* L% S; w( l$ 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。/ s1 [" w. f" ?9 a* z

( `1 K# K: {# i2 c) Ofirst time do it...not a bad grade5 a" I% a& ~( n) Z
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[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens. a3 ]+ t) c9 I( P% j. s2 c
P --> Q, 因為 P  所以 Q8 [; W( r# E3 p" j
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Modus tollendo tollens
3 x7 u; @, T" pP --> Q, 取得 ~P  所以 ~Q1 c  F. e( [/ Q4 k

# J0 h# H5 f, m8 DDisjunctive syllogism
$ g( j  z2 a( @- FP or Q, 取得 ~P  所以 Q/ E5 u  r$ b: Z2 {  [) s
P or Q, 取得 ~Q  所以 P
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  d. N( W) k: g# i+ m) J4 a6 K( ZConjunctive syllogism5 m! l. s6 ?# x0 n( H% G
~(P & Q), 取得 P  所以 ~Q' z, H9 }: E3 x7 P- s
~(P & Q), 取得 Q  所以 ~P$ c& O3 b. [& r# N* C
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Hypothetical syllogism
. X, K  n% w# H: D* ^0 M/ zP --> Q, 取得 Q --> R  所以 P --> R, C5 s# [; `0 u( O! v4 b3 V

; {( \$ B: b' N$ C! @3 y, F0 sDe Morgan's theorem, Q/ K1 Y/ M( }$ Z: B8 L& }, d3 a
~(P & Q)  所以 ~P or ~Q; C4 l% w6 R0 w! e& P8 G3 E
~(P or Q)  所以 ~P & ~Q