The Modal Octagon and John Buridan’s Modal Ontology

Chapter
Part of the Studies in Universal Logic book series (SUL)

Abstract

In this paper we will argue that the ontology implicit in John Buridan’s modal octagon commits him to a form of contingentism. In particular, we will argue that Buridan is committed to denying the validity of the Barcan and converse Barcan formulae.

Keywords

John Buridan Medieval logic Modal logic Modal ontology Necessitism and contingentism 

Mathematics Subject Classification

Primary 03A05; Secondary 03B45 

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Copyright information

© Springer International Publishing Switzerland 2017

Authors and Affiliations

  1. 1.Department of PhilosophyUniversity of YorkYorkUK

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