According to logical anti-exceptionalism we come to be justified in believing logical theories by similar means to scientific theories. This is often explained by saying that theory choice in logic proceeds via abductive arguments (Priest, Russell, Williamson, Hjortland). Thus, the success of classical and non-classical theories of validity are compared by their ability to explain the relevant data. However, as of yet there is no agreed upon account of which data logical theories must explain, and subsequently how they prove their mettle. In this paper, we provide a non-causal account of logical explanation, and show how it can accommodate important disputes about logic.
Logic and Metaphysics Workshop Fall 2019
September 2 GC Closed NO MEETING
September 9 Yael Sharvit, UCLA
September 16 Ole Hjortland and Ben Martin, Bergen
September 23 Alessandro Rossi, StAndrews
September 30 GC Closed NO MEETING
October 7 Dongwoo Kim, GC
October 14 GC Closed NO MEETING
October 21 Rohit Parikh, GC
October 28 Barbara Montero, GC
November 4 Sergei Aretmov, GC
November 11 Martin Pleitz, Muenster
November 18
November 25
December 2 Jessica Wilson, Toronto
December 9 Mark Colyvan, Sydney
December 16 MAYBE A MEETING; MAYBE NOT
Noneism is the theory according to which some things do not exist. Following an established convention, I will call allism the negation of noneism (every thing exists). Lewis [1990] and, more recently, Woodward [2013] argued that the allism/noneism dispute turns on an equivocation about the meaning of ‘exists’ and would thereby be merely verbal. These arguments have been attacked by Priest [2005, 2011, 2013], who took the dispute to be genuine. In this paper, I will present two new arguments for the genuineness of the allism/noneism dispute. The first appeals to a recent version of logical pluralism defended by Kouri Kissel [Forth]: the two parties could be seen as engaging in a metalinguistic negotiation, that is, a normative disagreement about which meaning of ‘exists’ is best suited for a certain domain of discourse. Secondly, Williamson [1987] indicated a proof-theoretic criterion the two sides should meet in order for their dispute to count as genuine: they must share enough rules of inference governing ‘exist’ to characterise it up to logical equivalence. This challenge, I argue, can be met.
Logic and Metaphysics Workshop Fall 2019 Schedule:
September 2 GC Closed NO MEETING
September 9 Yael Sharvit, UCLA
September 16 Ole Hjortland and Ben Martin, Bergen
September 23 Alessandro Rossi, St. Andrews
September 30 GC Closed NO MEETING
October 7 Dongwoo Kim, GC
October 14 GC Closed NO MEETING
October 21 Rohit Parikh, GC
October 28 Barbara Montero, GC
November 4 Sergei Aretmov, GC
November 11 Martin Pleitz, Muenster
November 18
November 25
December 2 Jessica Wilson, Toronto
December 9 Mark Colyvan, Sydney
December 16 MAYBE A MEETING; MAYBE NOT
Many have thought that Davidson’s Swampman scenario offers a serious problem to teleosemantics. For it appears to be possible from the scenario that there are completely ahistorical creatures with beliefs, and this apparent possibility contradicts the theory. In a series of papers (2001, 2006, 2016), Papineau argues that the Swampman scenario is not even the start of an objection to teleosemantics as a scientific reduction of belief. It is against this claim that I want to argue here. I shall argue that the explanatory power of teleosemantics rests on two conceptual pillars, namely success semantics and the etiological conception of biological function, and that the Swampman scenario questions the adequacy of the foundational conceptual commitments. Along the way, some general connection between explanation and modality will be developed that sheds a new light on Kripke’s analysis of necessary a posteriori propositions. The conclusion will be that teleosemanticists should tackle the Swampman objection head on.
Logic and Metaphysics Workshop Fall 2019
September 2 GC Closed NO MEETING
September 9 Yael Sharvit, UCLA
September 16 Ole Hjortland and Ben Martin, Bergen
September 23 Alessandro Rossi, StAndrews
September 30 GC Closed NO MEETING
October 7 Dongwoo Kim, GC
October 14 GC Closed NO MEETING
October 21 Rohit Parikh, GC
October 28 Barbara Montero, GC
November 4 Sergei Aretmov, GC
November 11 Martin Pleitz, Muenster
November 18
November 25
December 2 Jessica Wilson, Toronto
December 9 Mark Colyvan, Sydney
December 16 MAYBE A MEETING; MAYBE NOT
September 2 GC Closed NO MEETING
September 9 Yael Sharvit, UCLA
September 16 Ole Hjortland and Ben Martin, Bergen
September 23 Alessandro Rossi, StAndrews
September 30 GC Closed NO MEETING
October 7 Dongwoo Kim, GC
October 14 GC Closed NO MEETING
October 21 Rohit Parikh, GC
October 28 Barbara Montero, GC
November 4 Sergei Aretmov, GC
November 11 Martin Pleitz, Muenster
November 18 Matias Bulnes, CUNY
November 25 Vincent Peluce, CUNY
December 2 Jessica Wilson, Toronto
December 9 Mark Colyvan, Sydney
December 16 MAYBE A MEETING; MAYBE NOT
Presented by SWIP-Analytic
We discuss two approaches to life: presentism and futurism. The first one, which we are identifying with the Buddha, is to live in the present and not to allow the future to hinder us from living in the ever present now. The second one, which we will identify with Karl Popper, is to think before we act, and act now for a better future. We will discuss various aspects of presentism and futurism, such as Ruth Millikan’s Popperian animal, the psychologist Howard Rachlin’s social and temporal discounting, and even the popular but controversial idea, YOLO (you live only once). The purpose of this talk is to contrast one with the other. The central question of ethics is: How should one live? Our variation on that question is: When should one live? We conjecture that the notion of flow, developed by Csikszentmihalyi, may be a better optimal choice between these two positions.
This work, which is joint with Jongjin Kim, is to appear in the Journal of Buddhist Ethics.
Logic and Metaphysics Workshop:
September 2 GC Closed NO MEETING
September 9 Yael Sharvit, UCLA
September 16 Ole Hjortland and Ben Martin, Bergen
September 23 Alessandro Rossi, StAndrews
September 30 GC Closed NO MEETING
October 7 Dongwoo Kim, GC
October 14 GC Closed NO MEETING
October 21 Rohit Parikh, GC
October 28 Barbara Montero, GC
November 4 Sergei Aretmov, GC
November 11 Martin Pleitz, Muenster
November 18
November 25
December 2 Jessica Wilson, Toronto
December 9 Mark Colyvan, Sydney
December 16 MAYBE A MEETING; MAYBE NOT
Research in philosophy of mathematics over roughly the past half century can be understood, to a large degree, as a series of responses to what is commonly known as the Benacerraf problem: Given the abstract nature of mathematical entities, how can we come to have mathematical knowledge? How are we, in Benacerraf’s words, “to bridge the chasm. . . between the entities that form the subject matter of mathematics and the human knower?” In this talk, I aim to share with you some of the reasons why I think that Benacerraf’s problem—as he presents it and as Field restates it—just may be nothing to worry about.
Logic and Metaphysics Workshop:
September 2 GC Closed NO MEETING
September 9 Yael Sharvit, UCLA
September 16 Ole Hjortland and Ben Martin, Bergen
September 23 Alessandro Rossi, StAndrews
September 30 GC Closed NO MEETING
October 7 Dongwoo Kim, GC
October 14 GC Closed NO MEETING
October 21 Rohit Parikh, GC
October 28 Barbara Montero, GC
November 4 Sergei Aretmov, GC
November 11 Martin Pleitz, Muenster
November 18
November 25
December 2 Jessica Wilson, Toronto
December 9 Mark Colyvan, Sydney
December 16 MAYBE A MEETING; MAYBE NOT
We revisit the foundational question “Can consistency of a theory T be established by means of T?” The usual answer “No, by Gödel’s Second Incompleteness Theorem” is based on two assumptions:
1. Gödel’s internalized consistency formula is the only way to represent consistency.
2. Any contentual reasoning within T internalizes as a formal derivation in T.
We show that already for Peano arithmetic PA both of these assumptions are false: (1) does not cover such legitimate mode of presentation as schemes (think of the Induction scheme), (2) fails for schemes. Based on these observations, we offer a proof of PA-consistency by means of PA and discuss its potential impact.
Logic & Metaphysics Workshop
September 2 GC Closed NO MEETING
September 9 Yael Sharvit, UCLA
September 16 Ole Hjortland and Ben Martin, Bergen
September 23 Alessandro Rossi, StAndrews
September 30 GC Closed NO MEETING
October 7 Dongwoo Kim, GC
October 14 GC Closed NO MEETING
October 21 Rohit Parikh, GC
October 28 Barbara Montero, GC
November 4 Sergei Aretmov, GC
November 11 Martin Pleitz, Muenster
November 18
November 25
December 2 Jessica Wilson, Toronto
December 9 Mark Colyvan, Sydney
December 16 MAYBE A MEETING; MAYBE NOT
Reification is the systematic association of a non-object with an object that encodes it. Therefore the reificationist must be a trans-objectist – i.e., anyone who thinks that there are instances of reification must also think that some items are not objects. As exemplified by Frege’s puzzle of the concept horse, non-objects and reification are notoriously difficult to talk about. Therefore I will begin my presentation by outlining a formal language that enables the trans-objectist and the reificationist to speak in a way that is not self-undermining. I will go on and employ the framework to give a uniform diagnosis of the set theoretic and semantic paradoxes in terms of static reification that is an alternative to Graham Priest’s Inclosure Schema, and sketch how dynamic reification can provide a uniform solution to the paradoxes as well as a general account of the constitution of abstract objects. In order to achieve this it will be crucial to import some tools of Procedural Postulationism, a dynamic account of the ontology of mathematics developed by Kit Fine.
Logic and Metaphysics Workshop
September 2 GC Closed NO MEETING
September 9 Yael Sharvit, UCLA
September 16 Ole Hjortland and Ben Martin, Bergen
September 23 Alessandro Rossi, StAndrews
September 30 GC Closed NO MEETING
October 7 Dongwoo Kim, GC
October 14 GC Closed NO MEETING
October 21 Rohit Parikh, GC
October 28 Barbara Montero, GC
November 4 Sergei Aretmov, GC
November 11 Martin Pleitz, Muenster
November 18
November 25
December 2 Jessica Wilson, Toronto
December 9 Mark Colyvan, Sydney
December 16 MAYBE A MEETING; MAYBE NOT
There is a broad consensus that Aristotle introduced the concept of matter in order to develop a consistent account of substantial change. However, it is disputed which role matter fulfills in substantial change. According to the traditional interpretation, matter persists while taking on or losing a substantial form. According to a rival interpretation, matter does not persist in substantial change; instead, it is an entity from which a new substance can emerge and which ceases to exist in this process. In my view, both interpretations are problematic in the light of Aristotle’s broader ontological project and are at odds with the way Aristotle describes the substantial generation of living beings. On the basis of Aristotle’s biological theory, I will suggest that Aristotelian matter is a continuant in substantial generation, but does not satisfy the common criteria for persistence that apply to individual substances.
Anna Schriefl
Anna Schriefl is Wissenschaftliche Mitarbeiterin (assistant professor) at the University of Bonn, and currently a visiting scholar at the New School. She has published a book about Plato’s criticism of money and wealth, and most recently an introduction into Stoicism (both in German).