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What is alethic modality?



Alethic modality is modality that connotes the speaker’s estimation of the logical necessity or possibility of the proposition expressed by his utterance.


The adjective alethic is also used in expressions of specific degrees of alethic modality, such as

  • alethic possibility, or
  • alethic necessity.
Example (English)
  • Alfred is a bachelor; thus he must be unmarried.

    Adapted from:

    Lyons 1977b 788

  • Generic
      Alethic modality is a kind of

    Crystal 1985 12


    Palmer 1986 10–11


    Lyons 1977b 788–791

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