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:
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& M* t9 S% M% C# K# m9 |6 z4 S睇晒李天命都只得7分..............

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+ P' K9 D3 d1 a) }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。; L' [1 Y: Q; H! V

! O  B* h; N+ t* h% u$ ]; tfirst time do it...not a bad grade5 r0 G' S+ t" [9 g, D" _: G

3 q- Q3 c! ^" V' M4 e[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens
* A  l' G( m# a( j1 h8 vP --> Q, 因為 P  所以 Q
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" M8 ]' c+ G) o' ?6 ZModus tollendo tollens
& B8 S5 ^, O" u* Y) [; e! K7 ^" \P --> Q, 取得 ~P  所以 ~Q8 a1 q9 t# Y/ G( U
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Disjunctive syllogism! E+ @0 a; E3 k# w5 @+ J2 ?6 O
P or Q, 取得 ~P  所以 Q: \6 W, H5 E, h
P or Q, 取得 ~Q  所以 P
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- p' _: H/ l* R' R' e; jConjunctive syllogism
0 ]* k9 M6 |& T~(P & Q), 取得 P  所以 ~Q- x; f" M+ s4 E; J, y! s& ^7 V' q
~(P & Q), 取得 Q  所以 ~P
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* n  M/ p! h, [: vHypothetical syllogism8 b/ G- t7 U9 v; s; _, Z
P --> Q, 取得 Q --> R  所以 P --> R6 y1 h0 U8 a6 r

. H4 G! O; A. P- ~De Morgan's theorem! L0 W, e+ C! ]/ n% H
~(P & Q)  所以 ~P or ~Q3 [' W' [7 \. P
~(P or Q)  所以 ~P & ~Q