Relevant counterfactuals

Aparício, Joaquim Nunes

doi:10.1007/3-540-51665-4_78

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2015

2022

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Cited by 4 publications

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“…It differs from all approaches to evaluate conditionals which we are aware of like e.g. [12,13,16,19,20,24,25,27,28,30] in that it also considers conditionals whose conditions are unknown and evaluates them by applying revision and abduction in order to satisfy them.…”

Section: Introductionmentioning

confidence: 99%

On Conditionals

Dietz¹,

Hölldobler²

EPiC Series in Computing

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We discuss the evaluation of conditionals. Under classical logic a conditional of the form A implies B is semantically equivalent to not A or B. However, psychological experiments have repeatedly shown that this is not how humans understand and use conditionals. We introduce an innovative abstract reduction system under the three-valued Lukasiewicz logic and the weak completion semantics, that allows us to reason abductively and by revision with respect to conditionals, in three values. We discuss the strategy of minimal revision followed by abduction and discuss two notions of relevance. Psychological experiments will need to ascertain if these strategies and notions, or a variant of them, correspond to how humans reason with conditionals.

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