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本帖最后由 bigsnail 于 2012-6-7 11:17 编辑
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open your mouth and wash it with detergent4 `& I# x- A7 u; ^" v" |; Z% O2 o
$ k4 z D. g- o) M# j; E: G. csure 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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And remember:
8 O2 o. [6 ~$ Q& X"there is no evidence that A holds"
- C' | [4 J2 U6 Fdoes NOT mean
4 Q3 x! z. O3 j"there is evident that A does not hold".
2 A) m( H: V. S PIn fact, A could hold.
% ?$ h- w; U* {( CIt's a matter like observability vs objective existence.: j2 N/ }; K f4 c6 i3 O0 d/ Z
So what you say doesn't constitute a refutation.8 X _& A3 V; M5 [# H$ x \
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It's mainly by argumentation. See for example: {# O# h- n$ b! g
, r0 c5 h/ F- W0 [6 ~: M"Does the death penalty cost less than life in prison without parole?"
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. U; J( D- U( p* R% b+ h1 ]8 jhttp://deathpenalty.procon.org/view.answers.php?questionID=001000& r- e2 b9 f/ Z% n
: ?1 t" U# h! I2 b, ]Remember, things are more complicated than what you think.) v; N7 `2 Y3 o0 j: ?
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