Validity, the Squeezing Argument and Alternative Semantic Systems: the Case of Aristotelian Syllogistic

We investigate the philosophical significance of the existence of different semantic systems with respect to which a given deductive system is sound and complete. Our case study will be Corcoran’s deductive system D for Aristotelian syllogistic and some of the different semantic systems for syllogistic that have been proposed in the literature. We shall prove that they are not equivalent, in spite of D being sound and complete with respect to each of them. Beyond the specific case of syllogistic, the goal is to offer a general discussion of the relations between informal notions—in this case, an informal notion of deductive validity—and logical apparatuses such as deductive systems and (model-theoretic or other) semantic systems that aim at offering technical, formal accounts of informal notions. Specifically, we will be interested in Kreisel’s famous ‘squeezing argument’; we shall ask ourselves what a plurality of semantic systems (understood as classes of mathematical structures) may entail for the cogency of specific applications of the squeezing argument. More generally, the analysis brings to the fore the need for criteria of adequacy for semantic systems based on mathematical structures. Without such criteria, the idea that the gap between informal and technical accounts of validity can be bridged is put under pressure.     

The Contributing Factors of Change in a Therapeutic Process

The clients’ and therapists’ perceptions about the degree to which each of four common factors in therapy—extra-therapeutic factors; model/techniques; therapeutic alliance; and hope/expectancy—contribute to change in the therapeutic process were investigated in this study. In addition, the perceptions about the percentage of change attributed to clients and therapists were also explored. Results revealed that the therapists and clients have different perceptions on what factors contribute the most to change and that clients and therapists believe that the client contributes the most to change in a therapeutic process.M. L. Thomas, MSW, is a doctoral student in Marriage and Family Therapy at Florida State University.     

Sentence,proposition and identity

In this paper we discuss the distinction between sentence and proposition from the perspective of identity. After criticizing Quine, we discuss how objects of logical languages are constructed, explaining what is Kleene’s congruence—used by Bourbaki with his square—and Paul Halmos’s view about the difference between formulas and objects of the factor structure, the corresponding boolean algebra, in case of classical logic. Finally we present Patrick Suppes’s congruence approach to the notion of proposition, according to which a whole hierarchy of congruences leads to different kinds of objects.     

The Solvability of Probabilistic Regresses. A Reply to Frederik Herzberg

We have earlier shown by construction that a proposition can have a welldefined nonzero probability, even if it is justified by an infinite probabilistic regress. We thought this to be an adequate rebuttal of foundationalist claims that probabilistic regresses must lead either to an indeterminate, or to a determinate but zero probability. In a comment, Frederik Herzberg has argued that our counterexamples are of a special kind, being what he calls ‘solvable’. In the present reaction we investigate what Herzberg means by solvability. We discuss the advantages and disadvantages of making solvability a sine qua non, and we ventilate our misgivings about Herzberg’s suggestion that the notion of solvability might help the foundationalist.     

Albert Ellis and Rational Emotive Behavior Therapy: A Personal Reflection

I discuss what I consider to be Albert Ellis’s ten most important contributions to the development of REBT. I also give a personal view on what we will miss on his passing and on what we won’t.     

Free-energy and the brain

If one formulates Helmholtz’s ideas about perception in terms of modern-day theories one arrives at a model of perceptual inference and learning that can explain a remarkable range of neurobiological facts. Using constructs from statistical physics it can be shown that the problems of inferring what cause our sensory inputs and learning causal regularities in the sensorium can be resolved using exactly the same principles. Furthermore, inference and learning can proceed in a biologically plausible fashion. The ensuing scheme rests on Empirical Bayes and hierarchical models of how sensory information is generated. The use of hierarchical models enables the brain to construct prior expectations in a dynamic and context-sensitive fashion. This scheme provides a principled way to understand many aspects of the brain’s organisation and responses. In this paper, we suggest that these perceptual processes are just one emergent property of systems that conform to a free-energy principle. The free-energy considered here represents a bound on the surprise inherent in any exchange with the environment, under expectations encoded by its state or configuration. A system can minimise free-energy by changing its configuration to change the way it samples the environment, or to change its expectations. These changes correspond to action and perception, respectively, and lead to an adaptive exchange with the environment that is characteristic of biological systems. This treatment implies that the system’s state and structure encode an implicit and probabilistic model of the environment. We will look at models entailed by the brain and how minimisation of free-energy can explain its dynamics and structure.     

Statues and Lumps: A Strange Coincidence?

Puzzles about persistence and change through time, i.e., about identity across time, have foundered on confusion about what it is for ‘two things’ to be have ‘the same thing’ at a time. This is most directly seen in the dispute over whether material objects can occupy exactly the same place at the same time. This paper defends the possibility of such coincidence against several arguments to the contrary. Distinguishing a temporally relative from an absolute sense of ‘the same’, we see that the intuition, ‘this is only one thing’, and the dictum, ‘two things cannot occupy the same place at the same time’, are individuating things at a time rather than absolutely and are therefore compatible with coincidence. Several other objections philosophers have raised ride on this same ambiguity. Burke, originating what has become the most popular objection to coincidence, argues that if coincidence is possible there would be no explanation of how objects that are qualitatively the same at a time could belong to different sorts. But we can explain an object’s sort by appealing to its properties at other times. Burke’s argument to the contrary equivocates on different notions of ‘cross-time identity’ and ‘the statue’. From a largely negative series of arguments emerges a positive picture of what it means to say multiple things coincide and of why an object’s historical properties explain its sort rather than vice versa – in short, of how coincidence is possible.     

Morphological Rationalism and the Psychology of Moral Judgment

According to rationalism regarding the psychology of moral judgment, people’s moral judgments are generally the result of a process of reasoning that relies on moral principles or rules. By contrast, intuitionist models of moral judgment hold that people generally come to have moral judgments about particular cases on the basis of gut-level, emotion-driven intuition, and do so without reliance on reasoning and hence without reliance on moral principles. In recent years the intuitionist model has been forcefully defended by Jonathan Haidt. One important implication of Haidt’s model is that in giving reasons for their moral judgments people tend to confabulate – the reasons they give in attempting to explain their moral judgments are not really operative in producing those judgments. Moral reason-giving on Haidt’s view is generally a matter of post hoc confabulation. Against Haidt, we argue for a version of rationalism that we call ‘morphological rationalism.’ We label our version ‘morphological’ because according to it, the information contained in moral principles is embodied in the standing structure of a typical individual’s cognitive system, and this morphologically embodied information plays a causal role in the generation of particular moral judgments. The manner in which the principles play this role is via ‘proceduralization’ – such principles operate automatically. In contrast to Haidt’s intuitionism, then, our view does not imply that people’s moral reason-giving practices are matters of confabulation. In defense of our view, we appeal to what we call the ‘nonjarring’ character of the phenomenology of making moral judgments and of giving reasons for those judgments.

Negotiating boundaries in the definition of life: Wittgensteinian and Darwinian insights on resolving conceptual border conflicts

What is the definition of life? Artificial life environments provide an interesting test case for this classical question. Understanding what such systems can tell us about biological life requires negotiating the tricky conceptual boundary between virtual and real life forms. Drawing from Wittgenstein’s analysis of the concept of a game and a Darwinian insight about classification, I argue that classifying life involves both causal and pragmatic elements. Rather than searching for a single, sharp definition, these considerations suggest that life is a cluster concept with fuzzy boundaries and that there are multiple legitimate ways to make the notion precise for different scientific purposes. This pluralist, realist account avoids unnecessary border disputes by emphasizing how science negotiates such questions in relation to theory and evidence. I also discuss several objections to this approach, including a “moral hesitation” some have to allowing broader application of the concept of life to include artificial life.     

A proposal for genetically modifying the project of “naturalizing” phenomenology

In this paper, we examine Shaun Gallagher’s project of “naturalizing” phenomenology with the cognitive sciences: front-loaded phenomenology (FLP). While we think it is a productive proposal, we argue that Gallagher does not employ genetic phenomenological methods in his execution of FLP. We show that without such methods, FLP’s attempt to locate neurological correlates of conscious experience is not yet adequate. We demonstrate this by analyzing Gallagher’s critique of cognitive neuropsychologist Christopher Frith’s functional explanation of schizophrenic symptoms. In “constraining” Gallagher’s FLP program, we discuss what genetic phenomenological method is and why FLP ought to embrace it. We also indicate what types of structures a genetically modified FLP will consider, and how such an approach would affect the manner in which potential neurological correlates of conscious experience are conceptually understood and experimentally investigated.

Distributive Justice and Co-Operation in a World of Humans and Non-Humans: A Contractarian Argument for Drawing Non-Humans into the Sphere of Justice

Various arguments have been provided for drawing non-humans such as animals and artificial agents into the sphere of moral consideration. In this paper, I argue for a shift from an ontological to a social-philosophical approach: instead of asking what an entity is, we should try to conceptually grasp the quasi-social dimension of relations between non-humans and humans. This allows me to reconsider the problem of justice, in particular distributive justice. Engaging with the work of Rawls, I show that an expansion of the contractarian framework to non-humans causes an important problem for liberalism, but can be justified by a contractarian argument. Responding to Bell’s and Nussbaum’s comments on Rawls, I argue that we can justify drawing non-humans into the sphere of distributive justice by relying on the notion of a co-operative scheme. I discuss what co-operation between humans and non-humans can mean and the extent to which it depends on properties. I conclude that we need to imagine principles of ecological and technological distributive justice.     

Social norms and the traditional deterrence game

Bicchieri (The grammar of society: The nature and dynamics of norms, 2006, xi) presents a formal analysis of norms that answers the questions of “when, how, and to what degree” norms affect human behavior in the play of games. The purpose of this paper is to apply a variation of the Bicchieri norms analysis to generate a model of norms-based play of the traditional deterrence game (Zagare and Kilgour, Int Stud Q 37:1–27, 1993; Morrow, Game theory for political scientists, 1994), the paradigmatic model of conflict initiation in International Relations. The deterrence game is modeled here as a sequential decision problem. As such, our analysis is an adaptation of Bicchieri’s game-theoretic formalization of norms to what we will call the norms account of the game. We find that the standard account of the traditional deterrence game is a special case of the norms account of the game. We also show that the adaptation of Bicchieri’s analysis of social norms yields new and interesting claims regarding when, how, and to what degree norms operate as a constraint on risk-related behavior in the traditional deterrence game. Moreover, we discuss how the results of the model provide testable propositions of relevance to the role of norms in international interactions.     

Exploring Habermas’s Critical Engagement with Chomsky

This article explores Jürgen Habermas’s critical employment of Noam Chomsky’s insights and the philosophical assumptions that motivate or justify Habermas’s early enrichment of his universal pragmatics with material drawn from generative linguistics. The investigation of the influence Chomsky’s theory has exerted on Habermas aims to clarify what Habermas means by universalism, reason embedded in language and the universal core of communicative competence—away from various misinterpretations of Habermas’s rationalist commitments and from reductive, conventionalist readings of his notion of consensus. Much against hasty and unexamined incriminations of Habermasian pragmatics, a turn to a neglected and scantly researched topic such as the philosophical affinity of some Chomskian and Habermasian themes (and to the philosophical justification of the points where Chomsky and Habermas part company) will retrieve the kind of depth and nuance that may lead us beyond facile and simplistic understandings of what discursively reaching consensus might mean from a Habermasian point of view.     

Challenging the transcendental position: the holism of experience

Taking the problem of perception and illusion as a leading clue, this article presents a new phenomenological approach to perception and the world: “holism of experience.” It challenges not only Husserl’s transcendentalism, but also what remains of it in Heidegger’s early thought, on the grounds that it is committed to the skeptical inference: “Since we can always doubt any perception, we can always doubt perception as a whole.” The rejection of such an implicit inference leads to a relational paradigm of Being-in-the-World that differs from Heidegger’s on many points.     

Beyond design: cybernetics,biological computers and hylozoism

The history of British cybernetics offers us a different form of science and engineering, one that does not seek to dominate nature through knowledge. I want to say that one can distinguish two different paradigms in the history of science and technology: the one that Heidegger despised, which we could call the Modern paradigm, and another, cybernetic, nonModern, paradigm that he might have approved of. This essay focusses on work in the 1950s and early 1960s by two of Britain’s leading cyberneticians, Stafford Beer and Gordon Pask, in the field of what one can call biological computing. My object is to get as clear as I can on what Beer and Pask were up to. At the end, I will discuss Beer’s hylozoist ontology of matter, mind and spirit. This material is not easy to get the hang of—but that is what one should expect from an unfamiliar paradigm. Presented at an international conference on the philosophy of technology, Copenhagen, 13–15 Oct 2005. Revised for submission to Synthese.     

Should Moore have Followed his Own Method?

I discuss Soames’s proposal that Moore could have avoided a central problem in his moral philosophy if he had utilized a method he himself pioneered in epistemology. The problem in Moore’s moral philosophy concerns what it is for a moral claim to be self-evident. The method in Moore’s epistemology concerns not denying the obvious. In review of the distance between something’s being self-evident and its being obvious, it is suggested that Soames’s proposal is mistaken.     

Rawlsian social-contract theory and the severely disabled

Martha Nussbaum has powerfully argued in Frontiers ofJustice and elsewhere that John Rawls’s sort of social-contract theory cannot usefully be deployed to deal with issues pertaining to justice for the disabled. To counter this claim, this article deploys Rawls’s sort of social-contract theory in order to deal with issues pertaining to justice for the disabled—or, since, as Nussbaum stresses, we all have some degree of disability—for the severely disabled. In this way, rather than questioning one by one Nussbaum’s interpretive claims about Rawls’s view, one can simply see how the Rawlsian framework can work in application to this issue. Following Rawls’s lead, the paper utilizes the idealized “initial choice situation” as an analytic and comparative device for examining alternative principles of justice, developing three different interpretations of the initial choice situation that each correspond to a different set of principles that apply to people of all levels of disability. One of these sets of principles is a simple extension of Rawls’s, one is very close to what Nussbaum herself recommends, and the third is a kind of hybrid. In this way, it is shown not only that Rawls’s social-contract device can usefully be applied to these issues, but also that it is helpful for exploring the deep commitments underlying each of these competing sets of principles. This extension to Rawls’s device clearly departs to some extent from his intentions; but the paper argues that the ideal of reciprocity, which might be thought to pose the biggest obstacle to applying his social-contract device to issues pertaining to the severely disabled (those who are not capable of being cooperative members of society), is not an independently essential commitment of his mature social-contract view, central though it was to Rawls’s thought in the 1950s.     

Dream Skepticism and the Conditionality Problem

Recently, Ernest Sosa (2007) has proposed two novel solutions to the problem of dream skepticism. In the present paper, I argue that Sosa’s first solution falls prey to what I will refer to as the conditionality problem, i.e., the problem of only establishing a conditional—in this case, “if x, then I am awake,” x being a placeholder for a condition incompatible with dreaming—in a context where it also needs to be established that we can know that the antecedent holds, and as such can infer the consequent, i.e., “I am awake.” Sosa’s second solution, in terms of so-called reflective knowledge, is shown to land him in the dilemma of either facing yet another conditionality problem, or violating an internalist constraint that he explicitly grants the skeptic with respect to what kind of factors can be legitimately invoked in our account of how we may know the relevant antecedent. For these reasons, I conclude that Sosa has not solved the problem of dream skepticism.     

The perfect murder: A philosophical whodunit

In his Reasons and Persons, Derek Parfit argues from the possibility of cases of fission and/or fusion of persons that one must reject identity as what matters for personal survival. Instead Parfit concludes that what matters is “psychological connectedness and/or continuity with the right kind of cause,” or what he calls an R-relation. In this paper, I argue that, if one accepts Parfit’s conclusion, one must accept that R-relations are what matter for moral responsibility as well. Unfortunately, it seems that accepting that the R-relation is what matters for both survival and moral responsibility leads to a contradiction. My goal, however, is not merely to point out a problem in Parfit’s account. Instead, I believe that once we understand the basic intuitions which lead to this contradiction, it is clear that there is no fully satisfactory way to account for what matters with respect to survival and moral responsibility.