Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here


Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this chapter

+ Tax (if applicable)

Chapter Summary

Throughout his treatment of the contingency-syllogistic, Robert Kilwardby pursues his high-level program of supplementing Aristotle's text in ways that will enhance its credibility and systematicity. On the semantic plane, Kilwardby continues to state truth-conditions for different types of modal proposition, allowing their sense to fluctuate according to their inferential context. In the pure contingency-syllogisms, Kilwardby states a Theorem specifying which metaphysical types of term can occur as subjects or predicates in contingency-propositions. The Dialectica Monacensis states that a contingency-conclusion follows from two contingency-premises in all six moods of the third Figure. Kilwardby acknowledges that there are valid syllogisms with two negative premises, and with a negative Minor, because negative contingency-propositions are equivalent to affirmatives. Kilwardby's interpretation of the contingency-moods, like that of the necessity-moods, succeeds in displaying a certain ordo and sufficientia in Aristotle's text.

Keywords: Aristotle; contingency-syllogisms; Dialectica Monacensis ; Robert Kilwardby



Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
    Logic and Ontology in the Syllogistic of Robert Kilwardby — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation