trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:- K; \, C' i8 H' n
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* w% e- x+ \! Y! s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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4 g4 L/ `3 x  W- [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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睇晒李天命都只得7分..............

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" M7 N, O$ o; D* s4 {0 S& W7 p$ {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。
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first time do it...not a bad grade; _) ^( U3 y" Q2 X/ \  ^$ P5 U5 m* u
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[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens; G$ J, P& T4 p
P --> Q, 因為 P  所以 Q
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" X/ Z, o- t9 F: k. |Modus tollendo tollens$ x& H! B: N/ b8 Z  A
P --> Q, 取得 ~P  所以 ~Q1 E- \$ b* e3 O' Q7 B7 i$ R

  y$ _+ C! l" m6 P7 `/ qDisjunctive syllogism
  d7 @9 U/ W/ P1 y* FP or Q, 取得 ~P  所以 Q) z1 X/ c( f2 Z( o8 ^
P or Q, 取得 ~Q  所以 P
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1 L# y, P% i% \# ^! l( L* N! @Conjunctive syllogism
$ C" n& Z- h# ]~(P & Q), 取得 P  所以 ~Q
4 e/ B( B, ]& S' ~; s- L+ J~(P & Q), 取得 Q  所以 ~P
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0 a! N$ ~! K# p$ w7 lHypothetical syllogism$ @: o/ i' R4 e/ y+ J. n1 N+ m
P --> Q, 取得 Q --> R  所以 P --> R- A( A/ l# ^9 m4 q# j4 L

$ [9 I! c% s- o7 ?& oDe Morgan's theorem
: r& @9 r- H1 P! j- y~(P & Q)  所以 ~P or ~Q  b* v0 X8 r$ n% @( A3 i" V
~(P or Q)  所以 ~P & ~Q