University of Connecticut

Events Calendar

Logic Colloquium: Martin Pleitz (Muenster)

Friday, November 22, 2019
1:30pm – 3:00pm

Storrs Campus
tba

Join us for a talk by Martin Pleitz (Westfälische Wilhelms-Universität, Münster, Germany).

Martin Pleitz:

"A Dynamic Solution to the Liar Paradox"

The Liar paradox arises when we combine the assumption that a sentence can refer to itself with our naïve notion of truth and apply our unrevised logic. Most current approaches to the Liar paradox focus on revising our notion of truth and logic because nowadays almost everyone is convinced that there are self-referential sentences. I will argue against this conviction. My argument starts from observations about the metaphysics of expressions: A meaningful expression is based in a syntactic expression which in turn is based in a non-semiotic object, and these are pairwise distinct. As all objects of this three-fold ontology exist only relative to contexts, we can import ideas from tense logic about how existence and reference can interact in a contextualist metaphysics. Semantico-metaphysical reasoning then shows that in this dynamic setting, an object can be referred to only after it has started to exist. Hence the self-reference needed in the Liar paradox cannot occur, after all. As this solution is contextualist, it evades the expressibility problems of other proposals.

All welcome!

https://logic.uconn.edu/

Contact:

https://logic.uconn.edu/about/

UConn Logic Group Colloquium (primary), Philosophy Department, UConn Master Calendar

#eventtitle
Control Panel