Faculty of Arts

PHIL 216

Modal Logic


PHIL 216  is an introduction to various modal logics, broadly construed. We will investigate basic modal logic, as it is commonly referred to, but will also investigate several so-called non-classical logics, including conditional logics, intuitionistic logic, many-valued logics, relevant logics and paraconsistent logics. We will use possible worlds semantics to analyse these logical systems, as well as tableaux (called truth-trees in PHIL 101).

Applications to metaphysics and philosophy of language will be touched upon, allowing for optional research projects. This course will help to provide you with the philosophical and mathematical sophistication required for further logical studies at Stage III.

You will learn some fundamental logical skills required to understand and study various logical systems - primarily truth-trees, meta-theoretical reasoning, and "informal" (mathematics-style) proofs with different semantic definitions. The focus will be on proving validity, and provide counter-examples for invalidity, in a range of systems.

View the course syllabus

Availability 2019

Semester 1


Coordinator(s) Dr Patrick Girard


An Introduction to Non-Classical Logic: From If to Is - Graham Priest, Cambridge University Press, 2008. 


PHIL 216: 15.0 points


PHIL 101

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