Ignorance and Semantic Tableaux: Aliseda on Abduction

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THEORIA. An International Journal for Theory, History and Foundations of Science, ISSN: 2171-679X, Vol: 22, Issue: 3, Page: 305-318

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Woods, John
Euskal Herriko Unibertsitatea / Universidad del País Vasco
article description
This is an examination of similarities and differences between two recent models of abductive reasoning. The one is developed in Atocha Aliseda’s Abductive Reasoning: Logical Investigations into the Processes of Discovery and Evaluation (2006). The other is advanced by Dov Gabbay and the present author in their The Reach of Abduction: Insight and Trial (2005). A principal difference between the two approaches is that in the Gabbay-Woods model, but not in the Aliseda model, abductive inference is ignorance-preserving. A further differ-ence is that Aliseda reconstructs the abduction relation in a semantic tableaux environment, whereas the Woods-Gabbay model, while less systematic, is more general. Of particular note is the connection between abduction and legal reasoning.