trista_cheong

Originally posted by playbr2 at 2006-10-18 06:35 PM:4 a3 }8 ?/ Z; h/ w! S3 x5 o

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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:" @$ u& J. ?( d# W9 y/ F
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李天命d 書聽聞非常正

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# u* P, k6 M8 |% T7 m; D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 y! U) Z" Q8 p- h+ c- |
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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。" k1 S% {7 N4 M) H3 R
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first time do it...not a bad grade
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[ Last edited by Chingy on 2006-10-19 at 07:31 PM ]

clkgtr

Modus ponendo ponens
/ K. h7 W4 C" t0 i5 p& T! q9 CP --> Q, 因為 P  所以 Q8 q5 I6 ^% s) `' x# S. B$ R
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Modus tollendo tollens9 @7 l8 t" U% T, w
P --> Q, 取得 ~P  所以 ~Q
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  |) N" z/ u. W! FDisjunctive syllogism
. R3 C/ x1 w; xP or Q, 取得 ~P  所以 Q
9 E0 \2 \& Q/ H* y+ `* @P or Q, 取得 ~Q  所以 P
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Conjunctive syllogism
' ]5 U/ B% U" o" X: u' l~(P & Q), 取得 P  所以 ~Q
; v+ t" W  |5 C  R; m. F~(P & Q), 取得 Q  所以 ~P; x5 [3 h# U) L' Z8 _

+ ^5 `8 ?3 E% d) |% E9 K  o0 NHypothetical syllogism  U. Y% J( f8 U* ?) W
P --> Q, 取得 Q --> R  所以 P --> R3 ]9 n  M" C+ U. h0 b; `
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De Morgan's theorem
9 y. k% @+ q" ?  f- E~(P & Q)  所以 ~P or ~Q7 C7 l2 c9 x1 V  y  p  X0 @
~(P or Q)  所以 ~P & ~Q