Reasoning with `Unless´ counterfactual conditionals

This article tackles factual and counterfactual "unless" expressions such as "Virginia will not pass the exam unless she works harder" and "Virginia would not have passed the exam unless she had worked harder". "Unless" is a negative conditional that is semant...

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Bibliographic Details
Main Authors: Csongor Juhos, Sergio Moreno-Ríos, Ana Cristina Quelhas, Juan A. García-Madruga
Format: Article
Language:English
Published: Sciendo 2009-01-01
Series:Psicológica
Online Access:http://www.redalyc.org/articulo.oa?id=16911991005