History and Philosophy of Logic 30 (3):227-239 (2009)

Henrik Lagerlund
Stockholm University
In this article, the author studies some central concepts in Avicenna's and sī's modal logics as presented in Avicenna's Al-Ish r t wa'l Tan īh t ( Pointers and Reminders ) and in sī's commentary. In this work, Avicenna introduces some remarkable distinctions in order to interpret Aristotle's modal syllogistic in the Prior Analytics . The author outlines a new interpretation of absolute sentences as temporally indefinite sentences and argues on the basis of this that Avicenna seems to subscribe to the Principle of Plenitude. He also shows that he has no valid proof of the modal conversion rules and that he uses some rather ad hoc distinctions to show that Aristotle's modal syllogistic is correct. The author also notes some interesting differences between Avicenna's and sī's approaches to modal logic
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DOI 10.1080/01445340802518119
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References found in this work BETA

Prior Analytics. Aristotle & Robin Smith - 1989 - Kessinger Publishing.
Time and Necessity: Studies in Aristotle’s Theory of Modality.Jaakko Hintikka - 1973 - Revue Philosophique de la France Et de l'Etranger 166 (2):227-227.

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Citations of this work BETA

Existential Import in Avicenna's Modal Logic.Saloua Chatti - 2016 - Arabic Sciences and Philosophy 26 (1):45-71.
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Fārābī and Avicenna on Contraposition.Asadollah Fallahi - 2018 - History and Philosophy of Logic 40 (1):22-41.

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