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Conceivability and possibility: some dilemmas for Humeans.

Francesco Berto1, Tom Schoonen1

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Summary

Cognitive psychology challenges the Humean view that conceivability implies possibility. Mental representations, whether linguistic or pictorial, can allow for conceiving impossibilities, undermining modal epistemology.

Keywords:
Conceivability and possibilityImaginationMental imageryMental representationModal epistemology

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Area of Science:

  • Philosophy of Mind
  • Cognitive Psychology
  • Modal Epistemology

Background:

  • The Humean view posits that if something is conceivable, it must be possible.
  • This view is challenged by insights from cognitive psychology regarding mental representations.

Purpose of the Study:

  • To critically evaluate the Humean principle that conceivability entails possibility.
  • To explore the implications of different mental representation codes for conceivability.

Main Methods:

  • Analysis of mental representation theories, specifically linguistic and pictorial coding.
  • Examination of the arbitrariness of representation relations in cognitive psychology.
  • Assessment of whether imagination, purely qualitative or otherwise, can represent impossibilities.

Main Results:

  • Linguistic mental representations can easily represent impossibilities, as language allows for arbitrary connections.
  • Pictorial imagination, if not purely qualitative, also involves arbitrary labeling, enabling conception of the impossible.
  • The range of purely qualitative imagination is too limited for significant modal epistemology.

Conclusions:

  • The Humean view is challenged by cognitive psychology's understanding of mental representations.
  • Both linguistic and pictorial representational systems can lead to conceiving the impossible.
  • Alternative theories of mental representation are needed to support the Humean principle.