trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:' R8 z8 e; B6 ?% U5 L6 b' z

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4 R' ~, b, u5 {8 f. x& w$ i- d( X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:. M/ ~4 w; f; d( x( |' V7 J
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, I8 ?1 i( e6 R* a# k; w! v! ~' a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 I: _" l$ B: }5 ^+ U; {' q5 T
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睇晒李天命都只得7分..............

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1 ]; f# s! u( `8 I4 q) x6 n7 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。. V( [3 y! a3 n7 O% q

  f9 m4 Z& u% |* qfirst time do it...not a bad grade
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& L$ ]1 W2 t0 C, s3 k[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens
$ b  r$ u! s' O. D: C& uP --> Q, 因為 P  所以 Q8 ?; n" t0 Z7 ?4 C

+ n- W4 b5 D" o* O: F: IModus tollendo tollens
0 k7 v- Y3 ?. Z# p) E: u" P- lP --> Q, 取得 ~P  所以 ~Q3 h( _7 p" I$ }7 d( m
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Disjunctive syllogism' K. u9 G4 k6 `* Y* f* n
P or Q, 取得 ~P  所以 Q
: S0 C7 _9 ?6 l! b" Q& y4 u& T& xP or Q, 取得 ~Q  所以 P2 @3 o0 [. d$ ~0 W" @$ a8 ?/ L$ Q

% e0 N. S! @; [6 q. x6 \: BConjunctive syllogism
& w9 f, q, j" w~(P & Q), 取得 P  所以 ~Q
1 E( y/ F9 Y0 G2 \% j~(P & Q), 取得 Q  所以 ~P4 I! s8 i% q( _7 [+ {. V

" C- V3 P* b+ U. Q1 @! F7 L4 h/ x) UHypothetical syllogism
& F, n- O! R/ L- y) Z2 _3 BP --> Q, 取得 Q --> R  所以 P --> R$ h# H; `  I2 Q. ?& u" G

0 i0 M& y. O( `1 M* Y+ [De Morgan's theorem' P8 y# g, i/ q
~(P & Q)  所以 ~P or ~Q
9 d3 b$ s+ y$ M4 O~(P or Q)  所以 ~P & ~Q