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Journal Articles Philosophical Studies Year : 2023

Williamson on conditionals and testimony

Karolina Krzyżanowska
Igor Douven
  • Function : Author
  • PersonId : 742347
  • IdHAL : igor-douven


Abstract In Suppose and Tell , Williamson makes a new case for the material conditional account. He tries to explain away apparently countervailing data by arguing that these have been misinterpreted because researchers have overlooked the role of heuristics in the processing of conditionals. Cases involving the receipt of apparently conflicting conditionals play an important dialectical role in Williamson’s book: they are supposed to provide evidence for the material conditional account as well as for the defeasibility of a key procedure underlying our everyday assessments of conditionals. We argue that they can serve neither of these purposes and that Williamson overestimates the reach of heuristics. We specifically challenge Williamson’s assumption that, in the kind of cases centrally at issue in his book, the recipient of conflicting conditionals will typically accept those at face value, even granting Williamson that conditionals can be freely passed among speakers under normal conditions of testimony.



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Karolina Krzyżanowska, Igor Douven. Williamson on conditionals and testimony. Philosophical Studies, In press, ⟨10.1007/s11098-022-01874-7⟩. ⟨hal-03921570⟩
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