Agential Free Choice
Melissa Fusco (Columbia University)

September 6, 2019, 11:00am - 1:00pm
Logic Group, The University of Melbourne

224
Old Arts
Parkville 3010
Australia

Organisers:

University of Melbourne

Topic areas

Details

Melissa Fusco (Columbia) will present "Agential Free Choice" in Old Arts 224 at 11 on 6 September.

Abstract: Agential Free Choice

The Free Choice effect—whereby ♢(p or q) seems to entail both ♢p and ♢q—has long been described as a phenomenon affecting the deontic modal “may”. This paper presents an extension of the semantic account of deontic free choice defended in Fusco (2015) to the agentive modal “can”, the “can” which, intuitively, describes an agent’s powers.

I begin by sketching a model of inexact ability, which grounds a modal approach to agency (Belnap & Perloff, 1998; Belnap et al., 2001) in a Williamson (1992, 2014)-style margin of error. A classical propositional semantics combined with this framework can reflect the intuitions highlighted by Kenny (1976)’s much-discussed dartboard cases, as well as the counterexamples to simple conditional views recently discussed by Mandelkern et al. (2017). In §3, I substitute for classical disjunction an independently motivated generalization of Boolean join—one which makes the two diagonally, but not generally, equivalent—and show how it extends free choice inferences into a simple object language.

Supporting material

Add supporting material (slides, programs, etc.)

Reminders

Registration

No

Who is attending?

No one has said they will attend yet.

Will you attend this event?


Let us know so we can notify you of any change of plan.