Propositional dynamic logic (PDL) is a framework for reasoning about nondeterministic program executions (or, more generally, nondeterministic actions). In this setting, nondeterminism is taken as a primitive: a program is nondeterministic iff it has multiple possible outcomes. But what is the sense of “possibility” at play here? This talk explores an epistemic interpretation: working in an enriched logical setting, we represent nondeterminism as a relationship between a program and an agent deriving from the agent’s (in)ability to adequately measure the dynamics of the program execution. More precisely, using topology to capture the observational powers of an agent, we define the nondeterministic outcomes of a given program execution to be those outcomes that the agent is unable to rule out in advance. In this framework, determinism coincides exactly with continuity: that is, determinism is continuity in the observation topology. This allows us to embed PDL into (dynamic) topological (subset space) logic, laying the groundwork for a deeper investigation into the epistemology (and topology) of nondeterminism.
The seminar is concerned with applying formal methods to fundamental issues, with an emphasis on probabilistic reasoning, decision theory and games. In this context “logic” is broadly interpreted as covering applications that involve formal representations. The topics of interest have been researched within a very broad spectrum of different disciplines, including philosophy (logic and epistemology), statistics, economics, and computer science. The seminar is intended to bring together scholars from different fields of research so as to illuminate problems of common interest from different perspectives. Throughout each academic year, meetings are regularly presented by the members of the seminar and distinguished guest speakers.
details tba
02/08/2019 Faculty House, Columbia University
4:00 PM
03/29/2019 Faculty House, Columbia University
4:00 PM
04/19/2018 Faculty House, Columbia University
4:00 PM
Convergence to the truth is viewed with some ambivalence in philosophy of science. On the one hand, methods of inquiry that lead to the truth in the limit are prized as marks of scientific rationality. But an agent who, by using some method, expects to always converge to the truth seems to fail a minimum standard of epistemic modesty. This point was recently brought home by Gordon Belot in his critique of Bayesian epistemology. In this paper I will study convergence to the truth theorems within the framework of Edward Nelson’s radically elementary probability theory. This theory provides an enriched conceptual framework for investigating convergence and gives rise to an appropriately modest from of Bayesianism.
The seminar is concerned with applying formal methods to fundamental issues, with an emphasis on probabilistic reasoning, decision theory and games. In this context “logic” is broadly interpreted as covering applications that involve formal representations. The topics of interest have been researched within a very broad spectrum of different disciplines, including philosophy (logic and epistemology), statistics, economics, and computer science. The seminar is intended to bring together scholars from different fields of research so as to illuminate problems of common interest from different perspectives. Throughout each academic year, meetings are regularly presented by the members of the seminar and distinguished guest speakers.
details tba
02/08/2019 Faculty House, Columbia University
4:00 PM
03/22/2019 Faculty House, Columbia University
4:00 PM
04/19/2018 Faculty House, Columbia University
4:00 PM
Conference Schedule
10AM Teddy Seidenfeld – Conditional Probability, Conditionalization, and Total Evidence
11AM Eleonora Cresto – Beyond Indeterminate Utilities. The Case of Neurotic Cake-Cutting
11:20AM Ignacio Ojea Quintana – Unawareness and Levi’s Consensus as Common Ground
11:40AM Rush Stewart – Uncertainty, Equality, Fraternity
1PM Nils-Eric Sahlin – Levi’s Decision Theory: Lessons Learned
1:45PM Wilfried Sieg – Scientific Theories as Set-Theoretic Predicates?
2:45PM Panel Discussion – Learning from Levi
Abstracts available in attached documents under “Supporting material.”
Memorial
A memorial service will be held at 5PM at St. Paul’s Chapel on the Columbia campus. Reception to follow on the 7th floor of Philosophy Hall.
Ian Hacking wrote that probability is a Janus-faced concept with one face looking toward the world and the other toward the mind. The face looking toward the world is central to laws and explanations in physics (especially quantum mechanics and statistical mechanics) and the special sciences. The face looking toward the mind is central to epistemology and decision theory. This conference concerns both aspects and especially their relation to each other. What is probability that it possesses both aspects? This three-day conference will focus on answering this and related questions.
There is no registration fee and attendance is open to all; however, RSVP is required. Please RSVP here before Oct 15, if you plan to attend. All are welcome!
General information is available here.
Conference Organizers
Barry Loewer (Rutgers)
Denise Dykstra (Rutgers)
Invited Participants
David Albert (Columbia)
Valia Allori (NIU)
Katie Elliott (UCLA)
Ned Hall (Harvard)
Carl Hoefer (Barcelona)
Jenann Ismael (Columbia)
Christopher Meacham (Amherst)
Wayne Myrvold (Western)
Richard Pettigrew (Bristol)
Jack Spencer (MIT)
Schedule Overview
(A detailed schedule is available here.)
Thursday, October 24
- 3:00 – 6:00: Metaphysics of Objective Probability: Ned Hall (Harvard); Jenann Ismael (Columbia).
Friday, October 25
- 9:00 – 9:50: Breakfast in the philosophy department
- 9:50 – 10:00: Welcome & Introductory Remarks (Barry Loewer)
- 10:00 – 1:00: Chance: Katie Elliott (UCLA); Christopher Meacham (Amherst).
- 1:00 – 2:30: Lunch
- 2:30 – 5:30: Probabilities in the Special Sciences: Carl Hoefer (Barcelona); Wayne Myrvold (Western Ontario).
Saturday, October 26
- 9:00 – 10:00: Breakfast in the philosophy department
- 10:00 – 1:00: Chance-Credence Principles: Richard Pettigrew (Bristol); Jack Spencer (MIT).
- 1:00 – 2:30: Lunch
- 2:30 – 5:30: Typicality and the Statistical Postulate: David Albert (Columbia); Valia Allori (NIU).
Please contact the conference organizers (LawsAndChanceProject@gmail.com) if you have any questions.
For over a hundred years econometricians, epidemiologists, educational sociologists and other non-experimental scientists have used asymmetric correlational patterns to infer directed causal structures. It is odd, to say the least, that no philosophical theories of causation cast any light on why these techniques work. Why do the directed causal structures line up with the asymmetric correlational patterns? Judea Pearl says that the correspondence is a “gift from the gods”. Metaphysics owes us a better answer. I shall attempt to sketch the outline of one.
Logic and Metaphysics Workshop
Feb 3 Hartry Field, NYU
Feb 10 Melissa Fusco, Columbia
Feb 17 GC CLOSED NO MEETING
Feb 24 Dongwoo Kim, GC
Mar 2 Alex Citikin, Metropolitan Telecommunications
Mar 9 Antonella Mallozzi, Providence
Mar 16 David Papineau, GC
Mar 23 Jenn McDonald, GC
Mar 30 Mircea Dimitru, Bucharest
Apr 6 ? Eoin Moore, GC
Apr 13 SPRING RECESS NO MEETING
Apr 20 Michał Godziszewski, Munich
Apr 27 Michael Glanzberg, Rutgers
May 4 Matteo Zichetti, Bristol
May 11 Lisa Warenski,GC
May 18 PROBABLY NO MEETING
Presented by Metro Area Philosophers of Science
Spring 2020 Schedule:
Anthony Aguirre (UCSC) – “Entropy in long-lived genuinely closed quantum systems”
6:30-8:30pm Tuesday Feb 4; NYU Philosophy Department (5 Washington Place), 3rd floor seminar room.
David Papineau (King’s College London & CUNY) – “The Nature of Representation”
4:30-6:30pm Tuesday March 3; CUNY Graduate Center (365 5th Ave, NYC), room 5307.
Jim Holt (Author of Why Does the World Exist?) – “Here, Now, Photon: Why Newton was closer to EM than Maudlin is”
4:30-6:30pm Tuesday April 7; CUNY Graduate Center (365 5th Ave, NYC), room 5307.
Deborah Mayo (Virginia Tech)
4:30-6:30pm Tuesday April 28; CUNY Graduate Center (365 5th Ave, NYC), room 5307.
We are embarking on an innovative adaptation of J.P. Sartre’s timeless masterpiece, “No Exit.” Infused with elements inspired by Plato’s Dialogues, our play aims to explore the depths of existentialism, dark absurdity, and musical comedy while delving into the realms of speech and movement improvisation.
Through this innovative production, we aim to challenge and provoke audiences, encouraging deep introspection and dialogue about our existence and the choices we make. We believe that the combination of Sartre’s piercing insights and Plato’s philosophical foundations will create a unique theatrical experience that will resonate with both enthusiasts of classic literature and fans of contemporary performance art.
We are embarking on an innovative adaptation of J.P. Sartre’s timeless masterpiece, “No Exit.” Infused with elements inspired by Plato’s Dialogues, our play aims to explore the depths of existentialism, dark absurdity, and musical comedy while delving into the realms of speech and movement improvisation.
Through this innovative production, we aim to challenge and provoke audiences, encouraging deep introspection and dialogue about our existence and the choices we make. We believe that the combination of Sartre’s piercing insights and Plato’s philosophical foundations will create a unique theatrical experience that will resonate with both enthusiasts of classic literature and fans of contemporary performance art.
We are embarking on an innovative adaptation of J.P. Sartre’s timeless masterpiece, “No Exit.” Infused with elements inspired by Plato’s Dialogues, our play aims to explore the depths of existentialism, dark absurdity, and musical comedy while delving into the realms of speech and movement improvisation.
Through this innovative production, we aim to challenge and provoke audiences, encouraging deep introspection and dialogue about our existence and the choices we make. We believe that the combination of Sartre’s piercing insights and Plato’s philosophical foundations will create a unique theatrical experience that will resonate with both enthusiasts of classic literature and fans of contemporary performance art.
We are embarking on an innovative adaptation of J.P. Sartre’s timeless masterpiece, “No Exit.” Infused with elements inspired by Plato’s Dialogues, our play aims to explore the depths of existentialism, dark absurdity, and musical comedy while delving into the realms of speech and movement improvisation.
Through this innovative production, we aim to challenge and provoke audiences, encouraging deep introspection and dialogue about our existence and the choices we make. We believe that the combination of Sartre’s piercing insights and Plato’s philosophical foundations will create a unique theatrical experience that will resonate with both enthusiasts of classic literature and fans of contemporary performance art.