A significant problem facing David Lewis'Modal Realism is to provide a corresponding modal epistemology.Lewis presented two arguments in defense of his epistemology of modality,i.e.the argument based on the analogy with mathematics,ABAM,and the argument based on theoretical utility,ABTU.After analyzing it,we conclude that these two arguments of Lewis do not achieve his purpose.Moreover,one of the biggest difficulties is the IBE method used by Lewis.Based on the fact that IBE is not a truth-conductive approach and the logical issues behind IBE,we further refute both of Lewis'arguments.
LewisModal RealismEpistemology of Modalityhyperintension
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