Seminar Series

16.15 - 19.00 h

Oude Boteringestraat 52, room Alfa

16.15 - 19.00 h

Oude Boteringestraat 52, room Alfa

Place: Faculty of Philosophy, Room *OMEGA*

Time: 15.15-17.00

Abstract:

Everybody knows that Russell had a theory of definite descriptions. Not everybody realises that he had two: one for singular descriptions (the author of 'On Denoting'), another for plural descriptions (the co-authors of Principia Mathematica).

This talk will introduce a new approach to acceptance that addresses the lottery paradox and also some new paradoxes pertaining to conditional logic that cannot be addressed by ad hoc adjustments of the strictness of the acceptance rule. Another very attractive feature of the rule is that it tracks Bayesian conditioning - to accept and qualitatively update yields the same result as conditioning in a Bayesian way and then accepting.

Time: 15:00 - 16:15.

Faculty of Philosophy, Room Beta.

The provision of a precise treatment of the relation of evidential support has arguably constituted the principal selling point of Bayesian modeling in contemporary formal epistemology and philosophy of science. By the same token, the lack of an analogous proposal in so-called AGM belief revision theory is likely to have contributed to the latter's relatively marginal status in the philosophical mainstream.

Abstract:

We will have a special LIRa session on November 15, from 2 to 5 p.m., in room Beta at the Philosophy Department. Our speakers will be Sujata Ghosh, Barteld Kooi and Jakub Szymanik. Please find the titles and abstracts of the talk, and a programme, below.

Everyone is cordially invited!
Sonja Smets
Ben Rodenhäuser

Program

14:00-14:40 Sujata Ghosh: Logical studies of games played in parallel
14:40-14:50 Questions and Discussion
14:50-15:00 Coffee Break
15:00-15:40 Barteld Kooi: Many-valued Logic and Modal Logic
15:40-15:50 Questions and Discussion
15:50-16:00 Coffee Break

Dear Grologicians,

Due to a recent announcement of a lecture by Edith Elkind (see below), the lecture by Tomoyuki Yamada has been moved to:

TIME: Thursday November 17th, 2011: 14:00-15:45

PLACE: Bernoulliborg, Nijenborg 9: VIP room

ABSTRACT:

TIME: 15:15--17:00

PLACE: Bernoulliborg, Room 0165

ABSTRACT: Social Choice Theory studies the problem of collective
decisions making, in which a set of agents is bound to take a decision
on a set of common alternatives. From the seminal work of Kenneth
Arrow to more recent developments in Computational Social Choice, the
literature is filled with results bounding the feasibility of such
decisions (the notorious "impossibility results"), arising from
paradoxes of irrational group choices obtained from individually
rational agents.