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本帖最后由 bigsnail 于 2012-6-7 11:17 编辑 . a s! o' i; q6 F' v8 R. L
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open your mouth and wash it with detergent
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sure there is no rigorous statistical evidence because there is no way to manipulate in the experiment so as to fully justify the causality.
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; Z X7 W& _' cAnd remember: : B* B- D9 q" Q. R
"there is no evidence that A holds"
" r0 A3 |# z: s$ V7 e3 m0 tdoes NOT mean
# o, K0 f! D' [/ y0 K0 c"there is evident that A does not hold". % f2 {" o" E, k2 e; W; {
In fact, A could hold. - g) i% O h) M
It's a matter like observability vs objective existence.
9 k) m' X! F8 ^% C0 R0 tSo what you say doesn't constitute a refutation.& o) K# z" b6 @5 c0 O6 O
' R, c4 u" H! m( N* {! B2 B/ SIt's mainly by argumentation. See for example:
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"Does the death penalty cost less than life in prison without parole?") m% A" m( N5 b, Q8 o. Y# i
in
3 v4 h/ {3 [" p! Hhttp://deathpenalty.procon.org/view.answers.php?questionID=0010001 ^1 C# Y- t3 L7 W' }
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Remember, things are more complicated than what you think.
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