Avicenna on the Law of Non-contradiction

Aristotle gave seven arguments for the law of non-contradiction. The first one is against a special case of dialetheism, the view that only some contradictions are true, and other six arguments are mostly against trivialism, the view that everything and consequently every contraction is true. Aristotle never argued that dialetheism entails trivialism. Unlike Aristotle, Avicenna, in his defense of LNC, not only considers trivialism and argues against it, but also argues that dialetheism entails trivialism. The argument that dialetheism entails trivialism is called explosion. It is usually known that the first argument for explosion is given by the twelfth century logician William of Soissons. In this paper, we will meet Avicenna’s different argument for explosion and then I will demonstrate that this argument is a non-sequitur.     

Williams and the Desirability of Body‐Bound Immortality Revisited

Bernard Williams argues that human mortality is a good thing because living forever would necessarily be intolerably boring. His argument is often attacked for unfoundedly proposing asymmetrical requirements on the desirability of living for mortal and immortal lives. My first aim in this paper is to advance a new interpretation of Williams' argument that avoids these objections, drawing in part on some of his other writings to contextualize it. My second aim is to show how even the best version of his argument only supports a somewhat weaker thesis: it may be possible for some people with certain special psychological features to enjoy an immortal life, but no one has good reason to bet on being such a person.     

Determinism and Inevitability

The paper discusses one of the central arguments in Dennett’s Freedom Evolves, an argument designed to show that a deterministic universe would not necessarily be a universe of which it could truly be said that everything that occurs in it is inevitable. It suggests that on its most natural interpretation, the argument is vulnerable to a serious objection. A second interpretation is then developed, but it is argued that without placing more weight on etymological considerations than they can really bear, it can deliver only a significantly qualified version of the conclusion that Dennett is seeking. Moreover, the new argument depends upon an intermediate conclusion which, on the face of it, looks to be self-contradictory. Dennett is able to avoid the appearance of self-contradiction only by utilising a possible-worlds framework for the understanding of “could have done otherwise” judgements which is argued to be unsatisfactory. It is suggested that a different framework might hold the key to understanding how better to defend these same judgements from purported threats from determinism.     

Confronting Chaos: Migration Law Responds to Images of Disorder

This paper argues that in liberal nations migration law orders chaotic images and is an important site for the construction of national identities. Empirical illustrations are drawn primarily from Australia, but the thesis is applicable to all immigrant nations and also provides insights for the “Old World”. The argument proceeds by first examining the role of migration laws in liberal democratic societies. Building on this framework, it then looks at how Australian migration law responds to images of disorder outside the nation. Finally, it considers how migration law addresses disorder within the nation by reflecting a coherent picture of Australian national identity. This revised version was published online in June 2006 with corrections to the Cover Date.     

ARE INTENTIONS REASONS?

Abstract:   This paper presents an objection to the view that intentions provide reasons and shows how this objection is also inherited by the more commonly accepted Tie-Breaker view, according to which intentions provide reasons only in tie-break situations. The paper also considers and rejects T. M. Scanlon's argument for the Tie-Breaker view and argues that philosophers might be drawn to accept the problematic Tie-Breaker view by confusing it with a very similar, unproblematic view about the relation between intentions and reasons in tie-break situations.     

Professor Fisher on suppositions

I first support Alec Fisher's thesis that premises and conclusions in arguments can be unasserted first by arguing in its favor that only it preserves our intuition that it is at least possible that two arguments share the same premises and the same conclusion although not everything that is asserted in the one is also asserted in the other and second by answering two objections that might be raised against it. I then draw from Professor Fisher's thesis the consequence that in suppositional arguments the falsity (or unacceptability) of a supposition does not tell unfavorably in the evaluation of the argument, because the falsity (or unacceptability) of a (nonredundant) premise counts against an argument if and only if that premise is asserted. Finally, I observe that, despite the fact that they are neither expressed nor even alluded to, implicit assumptions in arguments are always asserted, unless the conclusion, but none of the explicit premisses, is unasserted. Hence, apart from an exceptional case of the kind just mentioned, the falsity (or unacceptability) of implicit assumptions always counts against an argument.I am indebted to Thomas E. Gilbert and Alec Fisher for their criticisms of an earlier draft of this paper.     

Agency, properties and causation

The paper argues against the very commonly held view that whenever a substance may be said to be the cause of something, a fuller and metaphysically more accurate understanding of the situation can always be obtained by looking to the properties in virtue of which that substance was able to bring about the effect in question. Paul Humphreys’ argument that when a substance is said to have produced an effect, it always turns out to be an aspect or property of that substance which brought about the effect in question is examined and criticized; it is argued that it is based on an illegitimate application of Mill’s Methods of Difference and Agreement to the case. Mill’s methods, it is suggested, are methods of empirical, not of ontological enquiry. The paper then turns to examine an argument by Mele which appears to depend on a structurally rather similar assumption that if there is nothing about a subject which could explain why she does one thing rather than another, it cannot really be up to that subject which thing occurs. It is suggested that, too, the inference is faulty, and that once it is rejected, one common objection to libertarianism—the argument from luck—might be more readily met.     

Zero tolerance for pragmatics

The proposition expressed by a sentence is relative to a context. But what determines the content of the context? Many theorists would include among these determinants aspects of the speaker’s intention in speaking. My thesis is that, on the contrary, the determinants of the context never include the speaker’s intention. My argument for this thesis turns on a consideration of the role that the concept of proposition expressed in context is supposed to play in a theory of linguistic communication. To illustrate an alternative approach, I present an original theory of the reference of demonstratives according to which the referent of a demonstrative is the object that adequately and best satisfies certain accessibility criteria. Although I call my thesis zero tolerance for pragmatics, it is not an expression of intolerance for everything that might be called “pragmatics.”     

What is special about indexical attitudes?

In this paper, I assess whether indexical attitudes, e.g. beliefs and desires, have any special properties or present any special challenge to theories of propositional attitudes. I being by investigating the claim that allegedly problematic indexical cases are just instances of the familiar phenomenon of referential opacity. Regardless of endorsing that claim, I provide an argument to the effect that indexical attitudes do have a special property. My argument relies on the fact that one cannot account for what is it to share someone else’s indexical attitudes without rejecting some plausible thesis about propositional attitudes. In the end, I assess Herman Cappelen and Josh Dever’s considerations on intentional action and extract an argument from them that could – if successful – neutralize my own. I finish by arguing that their argument has an important flaw, thus failing to convince us that indexical attitudes are just as ordinary as any other.     

Exactness,inexactness, and the non-transitivity of perceptual indiscriminability

I defend, to a certain extent, the traditional view that perceptual indiscriminability is non-transitive. The argument proceeds by considering important recent work by Benj Hellie: Hellie argues that colour perception represents ‘inexactly’, and that this results in violations of the transitivity of colour indiscriminability. I show that Hellie’s argument remains inconclusive, since he does not demonstrate conclusively that colour perception really does represent inexactly. My own argument for the non-transitivity of perceptual indiscriminability uses inexactness instead as one horn of a dilemma: the key idea is that there is a class of perceptual experiences which might plausibly be supposed either to represent inexactly or to represent exactly—but which demonstrate the non-transitivity of perceptual indiscriminability either way.     

What is it to be aware of your awareness of red? A review essay of Michelle Montague’s The Given

In this review essay of Michelle Montague’s The Given we focus on the central thesis in the book: the awareness of awareness thesis. On that thesis, a state of awareness constitutively involves an awareness of itself. In Section 2, we discuss what the awareness of awareness thesis amounts to, how it contrasts with the transparency of experience, and how it might be motivated. In Section 3, we discuss one of Montague’s two theoretical arguments for the awareness of awareness thesis. A view that accepts the awareness of awareness thesis, Montague argues, is to be preferred over competing views because it outperforms them in accounting for the property attributions one makes in perceptual experience. We suggest that it is not clear that this argument for the awareness of awareness thesis is successful. Finally, in Section 4 we consider the relation between Montague’s view of color experience and what she calls Strawson’s datum, arguing that Montague may not be able to explain this datum as straightforwardly as she supposes. This, we suggest, threatens Montague’s second theoretical argument for the awareness of awareness thesis.     

Normative roles,conceptual variance,and ardent realism about normativity

ABSTRACT

In Choosing Normative Concepts, Eklund considers a “variance thesis” about our most fundamental (and seemingly most “authoritative”) normative concepts. This thesis raises the threat of an alarming symmetry between different sets of normative concepts. If this symmetry holds, it would be incompatible with “ardent realism” about normativity. Eklund argues that the ardent realist should appeal to the idea of “referential normativity” in response to this challenge. I argue that, even if Eklund is right in his core arguments on this front, many other important challenges for ardent realism remain that also stem from the issues about possible variance in normative concepts that he considers. Following this, I introduce further issues about conceptual variance. These are issues that arise within the context of the framework that Eklund proposes the ardent realist use to confront the variance theses he considers. In particular, the issues concern what normative role as such is, as well as, relatedly, which roles associated with a concept (or predicate) get to count as part of its normative role. The upshot is that issues about conceptual variance in normative domains might be even more challenging for the ardent realist to deal with than Eklund argues.     

Discussion Note: McCain on Weak Predictivism and External World Scepticism

In a recent paper McCain (2012) argues that weak predictivism creates an important challenge for external world scepticism. McCain regards weak predictivism as uncontroversial and assumes the thesis within his argument. There is a sense in which the predictivist literature supports his conviction that weak predictivism is uncontroversial. This absence of controversy, however, is a product of significant plasticity within the thesis, which renders McCain’s argument worryingly vague. For McCain’s argument to work he either needs a stronger version of weak predictivism than has been defended within the literature, or must commit to a more precise formulation of the thesis and argue that weak predictivism, so understood, creates the challenge to scepticism that he hopes to achieve. The difficulty with the former is that weak predictivism is not uncontroversial in the respect that McCain’s argument would require. I consider the prospects of saving McCain’s argument by committing to a particular version of weak predictivism, but find them unpromising for several reasons.     

How to avoid begging the question against evolutionary debunking arguments

Evolutionary debunking arguments aim to undercut the epistemological status of our evaluative beliefs on the basis of the genesis of our belief‐forming tendencies. This paper addresses the issue whether responses to these arguments must be question‐begging. It argues for a pragmatic understanding of question‐beggingness, according to which whether an argument is question‐begging depends on the argumentative context. After laying out the debunking argument, the paper considers a variety of responses. It asks whether metaethical responses, such as Sharon Street’s response that relies on a version of antirealism, can avoid begging the question. It argues that so‐called ‘third‐factor’ responses, which rely on substantive evaluative views, are not question‐begging in all contexts. Similarly, it argues, my own ‘quasi‐tracking’ response is not question‐begging in all contexts. Finally, the paper asks whether responses to the debunking argument can avoid begging the question against someone who is convinced at the outset that the argument is sound.     

Makers' Rights

This paper examines the thesis that human labor creates property rights in or from previously unowned objects by virtue of labor's power to make new things. This thesis is considered for two possible roles: first, as a thesis to which John Locke might have been committed in his writings on property; and second, as a thesis of independent plausibility that could serve as part of a defensible contemporary theory of property rights. Understanding Locke as committed to the thesis of makers' rights has seemed to many of the best known recent Locke scholars to explain and unify Locke's various claims about property in a way that more traditional labor-mixing interpretations cannot. This paper argues that there is in fact no convincing evidence in Locke's texts to suggest any commitment to the thesis of makers' rights for humans. Further, not only does a version of the traditional labor-mixing argument yield a much superior interpretation of Locke's writings, it is an argument that is far more convincing than makers' rights arguments, quite independent of its usefulness in the interpretation of Locke's theory.     

Logic,Rules and Intention: The Principal Aim Argument

Stephen Mumford develops his view of sport spectatorship partly through a rejection of an argument he attributes to Best, which distinguishes between two categories of sports, the ‘purposive’ and the ‘aesthetic’, on the basis of the claim that they have different principal aims. This paper considers the principal aim argument and one feature of Mumford’s rejection of that argument, namely, Best’s observation that the distinctions to which he draws attention are based on logical differences. The paper argues that Mumford misconstrues Best’s argument by taking it to be about the intentions of players and athletes, while it is actually about a specific feature of the rules of each sport.     

Finding satisfaction in presentism

Synthese - This paper argues for a pragmatic motivation for believing Presentism—the thesis that everything is present. After outlining a pragmatic source of justification for beliefs, in...     

Freedom and forgiveness

In the history of philosophy and political thought freedom has meant a number of different things. The author considers several of these meanings and their relevance to psychoanalytic theory. The general argument against freedom that has been mounted in the history of thought, and echoed by Freud, is the thesis of causal determinism; but it is urged here that this in itself is no threat to freedom in the sense of the word required for moral agency: a free choice is one that is caused to some extent by reasons and that is relatively unconstrained both by 'external' and 'internal' forces. Yet because agents are embedded in a causal nexus that includes both the physical world and other people, agency and freedom can be compromised in innumerable ways. Neither freedom nor agency is a condition which we absolutely have or lack, but a matter of degree. Psychoanalytic therapy works toward expanding the capacity for agency and diminishing the constraints of certain internal forces. In the sense defined here, objectivity is an attitude that accepts our embeddedness in the world. With objectivity may come both forgiveness and self-forgiveness, which in turn promote agency.     

Caring,final ends and sports

In this essay I argue that sports at their best qualify as final ends, that is, as ends whose value is such that they ground not only the practices whose ends they are, but everything else we do as human agents. The argument I provide to support my thesis is derived from Harry Frankfurt's provocative work on the importance of the things we care about, more specifically, on his claim that it is by virtue of caring about things and practices, really caring about them – even loving them – we are able to regard and treat them as final ends. Sports, I claim, are paradigmatic examples of practices cared about and loved in these deep ways, and as such deserve to be considered, rather than dismissed because of their supposed triviality, as one of those ends around which a life most worth living can be legitimately forged.     

Presentism and the Triviality Objection

Presentism is usually understood as the thesis that only the present exists whereas the rival theory of eternalism is usually understood as the thesis that past, present, and future things are all equally real. The significance of this debate has been threatened by the so-called triviality objection, which allegedly shows that the presentist thesis is either trivially true or obviously false: Presentism is trivially true if it is read as saying that everything that exists now is present, and it is obviously false if read as saying that everything that has existed, exits or will exist is present. If eternalism is taken as the negation of presentism, it is also either trivially false or obviously true. In this paper, I try to respond to the triviality objection on behalf of presentism. In second section, I will examine how the argument proceeds. In third section, I will reflect on three possible ways to respond but will argue that none of them succeeds in giving a satisfactory solution. I will then try to clarify the core idea of presentism and to suggest that if we characterise presentism accurately, the problem will disappear. In fourth section, I will offer a plausible definition of presentism and will show how it can avoid the triviality objection and demonstrate why it is advantageous to accept the version of presentism I offer.