Modus Ponens Defended

Modus Ponens Defended
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DOI:
10.5840/jphil201511225
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发表时间:
2015
期刊:
影响因子:
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通讯作者:
Justin Bledin
Justin Bledin
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文献类型:
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作者:
Justin Bledin

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陈述性条件句的肯定前件有效吗?McGee [1985]著名地提出了几个所谓的“反例”,以这个推理规则。最近,Kolodny和MacFarlane [2010]和Willer [2010]认为这一规则在某些假设的情况下是不可靠的。但是,这些攻击都没有破坏一个信息逻辑概念,在这个概念上,肯定前件是有效的。
Is modus ponens for the indicative conditional valid? McGee [1985] famously presents several alleged ‘counterexamples’ to this rule of inference. More recently, Kolodny and MacFarlane [2010] and Willer [2010] argue that this rule is unreliable in some hypothetical contexts. But none of these attacks undermine an informational conception of logic on which modus ponens is valid.