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Wiley InterScience | ||||||||
  Mind & LanguageVolume 21 Issue 4, Pages 484 - 503 Published Online: 23 Aug 2006 Journal compilation © 2010 Blackwell Publishing Ltd
Abstract | References | Full Text: HTML, PDF (Size: 136K) | Related Articles | Citation Tracking  Two Varieties of Conditionals and Two Kinds of Defeaters Help Reveal Two Fundamental Types of Reasoning The authors are grateful to Didier Dubois for helpful technical suggestions. Copyright 2006 The Authors Journal compilation ABSTRACTAbstract: Two notions from philosophical logic and linguistics are brought together and applied to the psychological study of defeasible conditional reasoning. The distinction between disabling conditions and alternative causes is shown to be a special case of Pollock's (1987) distinction between 'rebutting' and 'undercutting' defeaters. 'Inferential' conditionals are shown to come in two varieties, one that is sensitive to rebutters, the other to undercutters. It is thus predicted and demonstrated in two experiments that the type of inferential conditional used as the major premise of conditional arguments can reverse the heretofore classic, distinctive effects of defeaters. Received: 16 June 2006; Accepted: 18 August 2006; | 
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