Co-authored letter to the APA to take a lead role in the recognition of teaching in the classroom, based on the participation in an interdisciplinary Conference on the Role of Advocacy in the Classroom back in 1995. At the time of this writing, the late Myles Brand was the President of Indiana University and a member of the IU Department of Philosophy.

Geach is best known for his contributions to theoretical philosophy: Most of his more than one hundred papers and a dozen books are on logic, philosophy of language and metaphysics. But he also made significant contributions to ethics. Particularly influential were a series of short metaethics papers, which are small masterpieces, both in terms of philosophical content and style. In usually less than ten pages, Geach delivers sharp analyses and powerful objections against influential schools. His arguments are always (...) so clear and his examples so simple that they leave the reader wondering why no one before Geach detected the problems he points out. (shrink)

Unger has recently argued that if you are the only thinking and experiencing subject in your chair, then you are not a material object. This leads Unger to endorse a version of Substance Dualism according to which we are immaterial souls. This paper argues that this is an overreaction. We argue that the specifically Dualist elements of Unger’s view play no role in his response to the problem; only the view’s structure is required, and that is available to Unger’s opponents. (...) We outline one such non-Dualist view, suggest how to resolve the dispute, respond to some objections, and argue that ours is but one of many views that survive Unger’s challenge. All these views are incompatible with microphysicalism. So Unger’s discussion does contain an insight: if you are the only conscious subject in your chair, then microphsyicalism is false. Unger’s mistake was to infer Substance Dualism from this; for microphysicalism is not the only alternative to Dualism. (shrink)

We use quotation marks when we wish to refer to an expression. We can and do so refer even when this expression is composed of characters that do not occur in our alphabet. That's why Tarski, Quine, and Geach's theories of quotation don't work. The proposals of Davidson, Frege, and C. Washington, however, do not provide a plausible account of quotation either. (Section I). The problem is to construct a Tarskian theory of truth for an object language that contains (...) quotation marks, without appealing to quotation marks in the metalanguage. I propose to supply Tarski's truth definition with one axiom that determines the denotation of all expressions containing quotation marks. According to this axiom, quotation marks create a non-extensional context. Since admitting such contexts does not lead to any difficulties in the recursive truth characterization, we may indeed dispense with extensionalism. (Section II). Finally, I argue that we classify and denote expressions in the very same way that we classify and denote extralinguistic entities. Both tokens and types of written signs can be easily incorporated into the naturalist's worldview. (Section III). (shrink)

Everyone agrees that we can’t change the past. But what about the future? Though the thought that we can change the future is familiar from popular discourse, it enjoys virtually no support from philosophers, contemporary or otherwise. In this paper, I argue that the thesis that the future is mutable has far more going for it than anyone has yet realized. The view, I hope to show, gains support from the nature of prevention, can provide a new way of responding (...) to arguments for fatalism, can account for the utility of total knowledge of the future, and can help in providing an account of the semantics of the English progressive. On the view developed, the future is mutable in the following sense: perhaps, once, it was true that you would never come to read a paper defending the mutability of the future. And then the future changed. And now you will. (shrink)

Despite its many advantages as a metaethical theory, moral expressivism faces difficulties as a semantic theory of the meaning of moral claims, an issue underscored by the notorious Frege-Geach problem. I consider a distinct metaethical view, inferentialism, which like expressivism rejects a representational account of meaning, but unlike expressivism explains meaning in terms of inferential role instead of expressive function. Drawing on Michael Williams’ recent work on inferential theories of meaning, I argue that an appropriate understanding of the pragmatic (...) role of moral discourse—the facilitation of coordinated social behavior—suggests the kind of inferences we should expect terms with this function to license. I offer a sketch of the inferential roles the moral ‘ought’ plays, and argue that if we accept that the relevant inferential roles are meaning-constitutive, we will be in a position to solve the Frege-Geach problem. Such an inferentialist solution has advantages over those forwarded by expressivists such as Blackburn and Gibbard. First, it offers a more straightforward explanation of the meaning of moral terms. It also gives simple answers to at least two semantic worries that have vexed contemporary expressivists—the “problem of permissions” and the commitment to “mentalism”, both of which I argue are problems that don’t get traction with an inferentialist approach. I conclude by considering ways in which this approach can be expanded into a more robust semantic account. (shrink)

Peter de Rivo (b. ca. 1420), argues for the existence of human freedom despite its alleged incompatibility with the truth of future contingent propositions. Rivo’s solution doesn’t follow the common medieval attempt to dissolve the alleged incompatibility, but claims that future contingent propositions aren’t determinately true. This approach troubled Rivo’s contemporaries, who thought it was incompatible with biblical infallibility, particularly the veracity of prophetic statements. Rivo tries to reconcile his solution with orthodox Christianity by grounding authentic prophetic statements in (...) God’s cognition of future events. In the end, Rivo’s attempted reconciliation fails because grounding the truth of prophetic statements in God cognition is incompatible either with his theological assumptions or his conception of free action. (shrink)

This papers discuss the place, if any, of Convention T (the condition of material adequacy of the proper definition of truth formulated by Tarski) in the truth-makers account offered by Kevin Mulligan, Peter Simons and Barry Smith. It is argued that although Tarski’s requirement seems entirely acceptable in the frameworks of truth-makers theories for the first-sight, several doubts arise under a closer inspection. In particular, T-biconditionals have no clear meaning as sentences about truth-makers. Thus, truth-makers theory cannot be considered (...) as the semantic theory of truth enriched by metaphysical (ontological) data. The problem of truth-makers for sentences about future events is discussed at the end of the paper. (shrink)

In a series of influential publications, Peter Geach suggested that the correct semantic analysis of some existential propositions requires a first-order, individual, property of existence alongside with the nowadays standard, second-order, one. Moreover, Geach argues that Aquinas was well aware of this need and accepted both a first-order and a second-order property of existence the first of which goes under the name of actus essendi. In this paper, I argue that Geach’s individual existence is not Aquinas’ (...) actus essendi, for at least two crucial reasons. Geach’s existence is tensed and is instantiated by present entities only, whereas in a series of works which spans throughout his corpus, Aquinas attributes a tenseless property of existence to past and future entities as well. (shrink)

Excerpts and paraphrases of this memoir appeared in 2008 and 2009. I posted it in full here in happy memory of Peter Hare and my joyful years with him. -/- 2008. Remembering Peter Hare 1935–2008. Philosophy Now. Co-authors: T. Madigan and A. Razin. Issue 66 March/April 2008. Pages 50–2. PDF -/- 2009. Remembering My Life with Peter Hare. Remembering Peter Hare 1935–2008. Ed. J. Campbell. Society for the Advancement of American Philosophy. pp. 9–16. http://american-philosophy.org/documents/RememberingPeterHare_final.pdf -/- (...) class='Hi'>Peter H. Hare, Distinguished Professor Emeritus of Philosophy at the University of Buffalo (SUNY at Buffalo), died peacefully in his sleep on Thursday, January 3, 2008. I would like to share my memories of my life with him. Others have eulogized him, enumerated his virtues and accomplishments, and written his obituaries. I am revisiting my personal relationship with him. These memories are as much about me as about him. (shrink)

In English, in order to speak about Arthur’s attitudes, we use sentences like “Arthur believes that natural language is messy”. For sentences of this kind we have a standard theory, according to which the ‘that’-clause ‘that natural language is messy’ denotes a proposition. As Prior showed for the first time, the standard theory appears to be at odds with some linguistic data. Geach and Prior both assumed that linguistic data are to be taken as reliable guides to a correct (...) semantic account and I will start by raising some worries concerning their methodology. Because of these data, Prior and Geach suggested some non-standard accounts. I will then show that if we take linguistic data seriously, their non-standard accounts do not fare any better than the standard theory. My general conclusion will thus not only be that Prior’s and Geach’s methodology is disputable, but also that their conclusions do not seem to follow even if we grant the reliability of their methodology. (shrink)

In the first of this new series for the journal, Peter Singer responds to questions from the editors and Theron Pummer.

You don't say much about who you are teaching, or what subject you teach, but you do seem to see a need to justify what you are doing. Perhaps you're teaching underprivileged children, opening their minds to possibilities that might otherwise never have occurred to them. Or maybe you're teaching the children of affluent families and opening their eyes to the big moral issues they will face in life — like global poverty, and climate change. If you're doing something like (...) this, then stick with it. Giving money isn't the only way to make a difference. (shrink)

Contemporary discussions of epistemological skepticism - the view that we do not and cannot know anything about the world around us - focus very much on a certain kind of skeptical argument involving a skeptical scenario (a situation familiar from Descartes’ First Meditation). According to the argument, knowing some ordinary proposition about the world (one we usually take ourselves to know) requires knowing we are not in some such skeptical scenario SK; however, since we cannot know that we are not (...) in SK we also cannot know any ordinary proposition. One of the most prominent skeptical scenarios is the brain-in-the-vat-scenario: An evil scientist has operated on an unsuspecting subject, removed the subject’s brain and put it in a vat where it is kept functioning and is connected to some computer which feeds the brain the illusion that everything is “normal”. This paper looks at one aspect of this scenario after another – envatment, disembodiment, weird cognitive processes, lack of the right kind of epistemic standing, and systematic deception. The conclusion is that none of these aspects (in isolation or in combination) is of any relevance for a would-be skeptical argument; the brain-in-the-vat-scenario is irrelevant to and useless for skeptical purposes. Given that related scenarios (e.g., involving evil demons) share the defects of the brain-in-the-vat-scenario, the skeptic should not put any hopes on Cartesian topoi. (shrink)

A strict dichotomy between the force / mode of speech acts and intentional states and their propositional content has been a central feature of analytical philosophy of language and mind since the time of Gottlob Frege and Bertrand Russell. Recently this dichotomy has been questioned by philosophers such as Peter Hanks (2015, 2016) and Francois Recanati (2016), who argue that we can't account for propositional unity independently of the forceful acts of speakers and propose new ways of responding to (...) the notorious 'Frege point' by appealing to a notion of force cancellation. In my paper I will offer some supplementary criticisms of the traditional view, but also a way of reconceptualizing the force-content distinction which allows us to preserve certain of its features, and an alternative response to the Frege point that rejects the notion of force cancellation in favor of an appeal to intentional acts that create additional forms of unity at higher levels of intentional organization: acts such as questioning a statement or order, or merely putting it forward or entertaining it; pretending to state or order; or conjoining or disjoining statements or orders. This allows us to understand how we can present a forceful act without being committed to it. In contrast, the Frege point confuses a lack of commitment to with a lack of commitment or force in what is put forward. (shrink)

Sometimes philosophers have been misunderstood. It could be because the philosopher's communication was vague. It could also be because the philosopher didn't use Ockham's razor and multiplied terms unnecessarily forcing reviewers to impose the razor, with the result that what needs to be cut is not cut and what was essential is taken out of the equation. This article cites two cases, one of the Indian thinker M.M. Thomas and other of Peter Van Inwagen, who claimed that their thoughts (...) were misrepresented by some other well known thinker. (shrink)

ABSTRACTDoes knowledge entail belief? This paper argues that the answer depends on how one interprets ‘belief’. There are two different notions of belief: belief as such and belief for knowledge. They often differ in their degrees of conviction such that one but not both might be present in a particular case. The core of the paper is dedicated to a defense of this overlooked distinction. The beginning of the paper presents the distinction. It then presents two cases which are supposed (...) to back up the claim that there is an important distinction here; I also offer some explanations concerning the structure of these cases. Finally, I add further considerations in support of the core thesis, and discuss objections. The distinction is important as such but also has interesting implications concerning the much discussed ‘entailment thesis’ according to which knowledge entails belief. It is argued here that even if knowledge entails belief-for-knowledge, it does not entail belief-as-such. This constitutes an interesting middle position and compromise in the philosophical debate about the entailment thesis. One further implication of this paper is that the discussion about the entailment thesis needs to take degrees of conviction seriously. Still another implication is that epistemic contextualists can deal very well with the relevant phenomena. (shrink)

Grenon and Smith (2004) propose a framework for the ontology of things in space and time involving and invoking the distinction between continuants and occurrents, which has become a key element of Basic Formal Ontology (BFO). The terminology of SNAP (from “snapshot:” state of a continuant at a time) and SPAN (how an occurrent develops over an interval or timespan) occurs in that paper’s title. While any commonsense ontology will have a place for both continuants and occurrents, there is much (...) room for philosophical debate on whether one of them is more basic than the other, or can be reduced to the other, or whether they are equally fundamental, or whether they are two different perspectives on the same reality. Grenon and Smith opt for the last of these. They call the accounts of continuants (SNAP) and occurrents (SPAN) both “ontologies.” They do not have a single ontology of all that is in space and time. This dialog throws a few of the common arguments around a bit and comes to no sure conclusion. But one of the characters bears a faint resemblance to a certain Buffalonian philosopher. (shrink)

Peter Geach’s distinction between logically predicative and logically attributive adjectives has gained a certain currency in philosophy. For all that, no satisfactory explanation of what an attributive adjective is has yet been provided. We argue that Geach’s discussion suggests two different ways of understanding the notion. According to one, an adjective is attributive just in case predications of it in combination with a noun fail to behave in inferences like a logical conjunction of two separate predications. According (...) to the other, an adjective is attributive just in case it cannot be applied in a truth-value-yielding fashion unless combined with a noun. The latter way of understanding the notion has been largely neglected by Geach’s critics, but we argue that taking account of it shows the misguided nature of some of their objections, and also yields a more satisfactory explanation of attributivity than does the other. (shrink)

The Frege point to the effect that e.g. the clauses of conditionals are not asserted and therefore cannot be assertions is often taken to establish a dichotomy between the content of a speech act, which is propositional and belongs to logic and semantics, and its force, which belongs to pragmatics. Recently this dichotomy has been questioned by philosophers such as Peter Hanks and Francois Recanati, who propose act-theoretic accounts of propositions, argue that we can’t account for propositional unity independently (...) of the forceful acts of speakers, and respond to the Frege point by appealing to a notion of force cancellation. I argue that the notion of force cancellation is faced with a dilemma and offer an alternative response to the Frege point, which extends the act-theoretic account to logical acts such as conditionalizing or disjoining. Such higher-level acts allow us to present forceful acts while suspending commitment to them. In connecting them, a subject rather commits to an affirmation function of such acts. In contrast, the Frege point confuses a lack of commitment to what is put forward with a lack of commitment or force in what is put forward. (shrink)

Contemporary accounts of the Trinity and Incarnation sometimes employ aspects of Peter Geach's theory of relative identity. Geach's theory provides an account not merely of identity predicates, but also proper names and restricted quantification. In a previous work I developed an account of the doctrines of the Trinity and Incarnation incorporating these three aspects of Geach's theory and tried to show how each might contribute to our understanding of the doctrines. Joseph Jedwab has recently argued that (...) my account—or any that employs Geach's treatment of restricted quantifiers—leads to serious doctrinal errors. I reply to his criticisms. (shrink)

A conception of legitimacy is at the core of normative theories of democracy. Many different conceptions of legitimacy have been put forward, either explicitly or implicitly. In this article, I shall first provide a taxonomy of conceptions of legitimacy that can be identified in contemporary democratic theory. The taxonomy covers both aggregative and deliberative democracy. I then argue for a conception of democratic legitimacy that takes the epistemic dimension of public deliberation seriously. In contrast to standard interpretations of epistemic democracy, (...) however, the conception I put forward avoids procedure-independent standards of correctness. Instead, it relies on a procedural social epistemology and defines legitimacy entirely in terms of the fairness of procedures. I call this conception of democratic legitimacy `Pure Epistemic Proceduralism'. I shall argue that it should be preferred over `Rational Epistemic Proceduralism', the conception of legitimacy that underlies the standard interpretation of epistemic democracy. Key Words: legitimacy • deliberative democracy • epistemic democracy • social epistemology. (shrink)

According to an often repeated definition, economics is the science of individual choices and their consequences. The emphasis on choice is often used – implicitly or explicitly – to mark a contrast between markets and the state: While the price mechanism in well-functioning markets preserves freedom of choice and still efficiently coordinates individual actions, the state has to rely to some degree on coercion to coordinate individual actions. Since coercion should not be used arbitrarily, coordination by the state needs to (...) be legitimized by the consent of its citizens. The emphasis in economic theory on freedom of choice in the market sphere suggests that legitimization in the market sphere is “automatic” and that markets can thus avoid the typical legitimization problem of the state. In this paper, I shall question the alleged dichotomy between legitimization in the market and in the state. I shall argue that it is the result of a conflation of choice and consent in economics and show how an independent concept of consent makes the need for legitimization of market transactions visible. Footnotes1 For helpful comments and suggestions I am most grateful to Marc Fleurbaey, Alain Marciano, Herlinde Pauer-Studer, Thomas Pogge, Hans Bernhard Schmid, to seminar or conference participants in Aix-Marseille, Tutzing, Paris, and Amsterdam, and to two anonymous referees. (shrink)

The plane was going to crash, but it didn't. Johnny was going to bleed to death, but he didn't. Geach sees here a changing future. In this paper, I develop Geach's primary argument for the (almost universally rejected) thesis that the future is mutable (an argument from the nature of prevention), respond to the most serious objections such a view faces, and consider how Geach's view bears on traditional debates concerning divine foreknowledge and human freedom. As I (...) hope to show, Geach's view constitutes a radically new view on the logic of future contingents, and deserves the status of a theoretical contender in these debates. (shrink)

P. T. Geach has argued that it is impossible to demonstrate that the doctrine of the Trinity is consistent. I try to show why -- on a common understanding of the notion of consistency -- his reasoning is flawed and why, on Geach’s own principles, one should expect that if the doctrine of the Trinity is true then it will be possible to prove that the doctrine is consistent, and it will be possible to do this in a (...) way that makes no appeal to the truth of any religious doctrine. (shrink)

I resolve the major challenge to an Expressivist theory of the meaning of normative discourse: the Frege–Geach Problem. Drawing on considerations from the semantics of directive language (e.g., imperatives), I argue that, although certain forms of Expressivism (like Gibbard’s) do run into at least one version of the Problem, it is reasonably clear that there is a version of Expressivism that does not.

Autonomous and automatic weapons would be fire and forget: you activate them, and they decide who, when and how to kill; or they kill at a later time a target you’ve selected earlier. Some argue that this sort of killing is always wrong. If killing is to be done, it should be done only under direct human control. (E.g., Mary Ellen O’Connell, Peter Asaro, Christof Heyns.) I argue that there are surprisingly many kinds of situation where this is false (...) and where the use of Automated Weapons Systems would in fact be morally required. These include cases where a) once one has activated a weapon expected then to behave lethally, it would be appropriate to let it continue because this is part of a plan whose goodness one was best positioned to evaluate before activating the weapon; b) one expects better long-term consequences from allowing it to continue; c) allowing it to continue would express a decision you made to be resolute, a decision that could not have advantaged you had it not been true that you would carry through with it; d) the weapon is mechanically not recallable, so that, to not allow it to carry through, you would have had to refrain from activating it in the first place, something you expected would have disastrous consequences; e) you must deputize necessary killings to autonomous machines in order to protect yourself from guilt you shouldn’t have to bear; f) it would be morally better for the burden of responsibility for the killing to be shared among several agents, and the agents deputizing killing to machines can do this, especially where it’s not predictable which machine will be successful; g) a killing would be morally better done with elements of randomness and lack of deliberation, and a (relatively stupid) machine could do this where a person could not; h) the machine would be acting as a Doomsday Device, so that it could not have had its hoped for deterrent effect had you not ensured that you would be unable to recall it if enemy action activated it; i) letting it carry through is a necessary part of its own learning process, and you expect that this learning will have salutary effects later on; j) human intervention in the machine’s operation would disastrously impair its precision, or its speed and efficiency; k) using non-automated methods would require human resources you just don’t have in a task that nevertheless must be done (e.g., using land-mines to protect remote installations); l) the weapon has such horrible and indiscriminate power that it is doubtful whether it could be actually used in ways compatible with International Humanitarian Law and the Laws of War, which require that weapons be used only in ways respecting distinctness, necessity and proportionality, but its threat of use could respect these principles in affording deterrence provided human error cannot lead to their accidental deployment, this requiring that they be controlled by carefully designed autonomous and automatic systems. I then consider objections based on conceptions of human dignity and find that very often dignity too is best served by autonomous machine killing. Examples include saving your village by activating a robot to kill invading enemies who would inflict great indignity on your village, using a suicide robot to save yourself from a less dignified death at enemy hands, using a robotic drone to kill someone otherwise not accessible in order to restore dignity to someone this person killed and to his family, and using a robot to kill someone who needs killing, but the killing of whom by a human executioner would soil the executioner’s dignity. I conclude that what matters in rightful killing isn’t necessarily that it be under the direct control of a human, but that it be under the control of morality; and that could sometimes require use of an autonomous or automated device. (shrink)

In a recent paper I argued that agent causation theorists should be compatibilists. In this paper, I argue that compatibilists should be agent causation theorists. I consider six of the main problems facing compatibilism: (i) the powerful intuition that one can't be responsible for actions that were somehow determined before one was born; (ii) Peter van Inwagen's modal argument, involving the inference rule (β); (iii) the objection to compatibilism that is based on claiming that the ability to do otherwise (...) is a necessary condition for freedom; (iv) "manipulation arguments," involving cases in which an agent is manipulated by some powerful being into doing something that he or she would not normally do, but in such a way that the compatibilist's favorite conditions for a free action are satisfied; (v) the problem of constitutive luck; and (vi) the claim that it is not fair to blame someone for an action if that person was determined by forces outside of his or her control to perform that action. And in the case of each of these problems, I argue that the compatibilist has a much more plausible response to that problem if she endorses the theory of agent causation than she does otherwise. (shrink)

A Study of Perennial Philosophy and Psychedelic Experience, with a Proposal to Revise W. T. Stace’s Core Characteristics of Mystical Experience ©Ed D’Angelo 2018 -/- Abstract -/- According to the prevailing paradigm in psychedelic research today, when used within an appropriate set and setting, psychedelics can reliably produce an authentic mystical experience. According to the prevailing paradigm, an authentic mystical experience is one that possesses the common or universal characteristics of mystical experience as identified by the philosopher W. T. Stace (...) in his 1960 work Mysticism and Philosophy. Stace’s common characteristics of mystical experience are the basis for the Hood Mysticism Questionnaire, which is the most widely used quantitative measure of mystical experience in experimental studies of psychedelic experience. In this paper, I trace the historical roots of Stace’s common characteristics of mystical experience back to Christian Neoplatonism and apophatic theology, and I trace those, in turn, back to Plato’s concept of the Good and to Aristotle’s concept of God as active intellect. I argue that Stace’s common characteristics of mystical experience are not universal or culturally invariant but are the product of a specifically Christian religious and moral tradition that has its roots in ancient Greek metaphysics. My paper concludes with a revised list of common characteristics of psychedelic experience that is a better candidate for a list of invariant structures of psychedelic experience than Stace’s common characteristics of Christian mystical experience. (shrink)

I argue that Frege's so-called "concept 'horse' problem" is not one problem but many. When these separate sub-problems are distinguished, some are revealed to be more tractable than others. I further argue that there is, contrary to a widespread scholarly assumption originating with Peter Geach, little evidence that Frege was concerned with the general problem of the inexpressibility of logical category distinctions in writings available to Wittgenstein. In consequence, Geach is mistaken in thinking that in the Tractatus (...) Wittgenstein simply accepts from Frege certain lessons about the inexpressibility of logical category distinctions and the say-show distinction. In truth, Wittgenstein drew his own morals about these matters, quite possibly as the result of reflecting on how the general problem of the inexpressibility of logical category distinctions arises in Frege's writings , but also, quite possibly, by seeing certain glimmerings of these doctrines in the writings of Russell. (shrink)

This is an opinionated overview of the Frege-Geach problem, in both its historical and contemporary guises. Covers Higher-order Attitude approaches, Tree-tying, Gibbard-style solutions, and Schroeder's recent A-type expressivist solution.

Peter Singer’s famous and influential essay is criticised in three main ways that can be considered libertarian, although many non-libertarians could also accept them: 1) it mistakes the relevant moral principle, which more plausibly relates to easily-satisfied local contracts (fitting Hayek’s “Great Society”) rather than impractically-onerous global intuitions (with evolutionary origins); 2) its suggested principle of the immorality of not doing good is paradoxical as it overlooks the converse aspect that would be the positive morality of not doing bad, (...) and thereby it conceptually eliminates innocence; and 3) free markets—especially international free trade—have been overwhelmingly demonstrated to be the real solution to the global “major evils” of poverty and pollution, while “overpopulation” does not really exist in free-market frameworks; hence charity is a relatively minor alleviant to the problem of insufficient free markets. (shrink)

During the last decades, many cognitive architectures (CAs) have been realized adopting different assumptions about the organization and the representation of their knowledge level. Some of them (e.g. SOAR [35]) adopt a classical symbolic approach, some (e.g. LEABRA[ 48]) are based on a purely connectionist model, while others (e.g. CLARION [59]) adopt a hybrid approach combining connectionist and symbolic representational levels. Additionally, some attempts (e.g. biSOAR) trying to extend the representational capacities of CAs by integrating diagrammatical representations and reasoning are (...) also available [34]. In this paper we propose a reflection on the role that Conceptual Spaces, a framework developed by Peter G¨ardenfors [24] more than fifteen years ago, can play in the current development of the Knowledge Level in Cognitive Systems and Architectures. In particular, we claim that Conceptual Spaces offer a lingua franca that allows to unify and generalize many aspects of the symbolic, sub-symbolic and diagrammatic approaches (by overcoming some of their typical problems) and to integrate them on a common ground. In doing so we extend and detail some of the arguments explored by G¨ardenfors [23] for defending the need of a conceptual, intermediate, representation level between the symbolic and the sub-symbolic one. In particular we focus on the advantages offered by Conceptual Spaces (w.r.t. symbolic and sub-symbolic approaches) in dealing with the problem of compositionality of representations based on typicality traits. Additionally, we argue that Conceptual Spaces could offer a unifying framework for interpreting many kinds of diagrammatic and analogical representations. As a consequence, their adoption could also favor the integration of diagrammatical representation and reasoning in CAs. (shrink)

This paper draws together as many as possible of the clues and pieces of the puzzle surrounding T. S. Eliot’s “infamous” literary term “objective correlative”. Many different scholars have claimed many different sources for the term, in Pound, Whitman, Baudelaire, Washington Allston, Santayana, Husserl, Nietzsche, Newman, Walter Pater, Coleridge, Russell, Bradley, Bergson, Bosanquet, Schopenhauer and Arnold. This paper aims to rewrite this list by surveying those individuals who, in different ways, either offer the truest claim to being the source of (...) the term, or contributed the most to Eliot’s development of it: Allston, Husserl, Bradley and Bergson. What the paper will argue is that Eliot’s possible inspiration for the term is more indebted to the idealist tradition, and Bergson’s aesthetic development of it, than to the phenomenology of Husserl. (shrink)

This paper argues that there are no people. If identity isn't what matters in survival, psychological connectedness isn't what matters either. Further, fissioning cases do not support the claim that connectedness is what matters. I consider Peter Unger's view that what matters is a continuous physical realization of a core psychology. I conclude that if identity isn't what matters in survival, nothing matters. This conclusion is deployed to argue that there are no people. Objections to Eliminativism are considered, especially (...) that morality cannot survive the loss of persons. (shrink)

G.E. Moore said that rightness was obviously a matter of maximising plain goodness. Peter Geach and Judith Thomson disagree. They have both argued that ‘good’ is not a predicative adjective, but only ever an attributive adjective: just like ‘big.’ And just as there is no such thing as plain bigness but only ever big for or as a so-and-so, there is also no such thing as plain goodness. They conclude that Moore’s goodness is thus a nonsense. However attention (...) has been drawn to a weakness in their arguments. Mahrad Almotahari and Adam Hosein have sought to plug that weakness. If their plug holds, then there is no goodness. Doing most of their work is the following premise: adjective φ is predicative only if it can be used predicatively in ‘x is a φ K’ otherwise it is attributive. In this paper I argue that this premise is false, that their plug does not hold and that if one is to reject plain goodness it will have to be for other reasons. (shrink)

Book review of Peter Boghossian, A Manual for Creating Atheists, Pitchstone Publishing, 2013, 280pp., $14.95, ISBN 978-1939578099 (paperback). Foreword by Michael Shermer. Science, Religion & Culture 1:2 (August 2014), 93-96 .

A short encyclopedia article on Peter Singer which discusses his views on the obligations that the global wealthy have to the global poor and on our obligations to non-human animals.

Spatially situated opinions that can be held with different degrees of conviction lead to spatiotemporal patterns such as clustering (homophily), polarization, and deadlock. Our goal is to understand how sensitive these patterns are to changes in the local nature of interactions. We introduce two different mixing mechanisms, spatial relocation and nonlocal interaction (“telephoning”), to an earlier fully spatial model (no mixing). Interestingly, the mechanisms that create deadlock in the fully spatial model have the opposite effect when there is a sufficient (...) amount of mixing. With telephoning, not only is polarization and deadlock broken up, but consensus is hastened. The effects of mixing by relocation are even more pronounced. Further insight into these dynamics is obtained for selected parameter regimes via comparison to the mean-field differential equations. (shrink)

The important impact of the French Franciscan Peter Auriol (ca. 1280-1322) upon contemporary philosophical theology at Oxford is well known and has been well documented and analyzed, at least for a narrow range of issues, particularly in epistemology. This article attempts a more systematic treatment of his effects upon Oxford debates across a broader range of subjects and over a more expansive duration of time than has been done previously. Topics discussed include grace and merit, future contingents and divine (...) foreknowledge, and the logic of the Trinity. (shrink)

Peter Kivy claims that expressivists in aesthetics cannot explain why we argue about art. The situation would be different in the case of morals. Moral attitudes lead to action, and since actions affect people, we have a strong incentive to change people’s moral attitudes. This can explain why we argue about morals, even if moral language is expressive of our feelings. However, judgements about what is beautiful and elegant need not significantly affect our lives. So why be concerned with (...) other people’s feelings about art? Kivy thinks the best explanation of our tendency to argue about art is that we implicitly believe in objective facts about aesthetics. This would count against expressivism. I argue two things: that there is no good reason to think that we don’t care about preferences and emotions unless they have significant practical consequences and that the truth of expressivism about aesthetic language is compatible with beliefs about objective aesthetic facts. (shrink)

No one is quite sure what happened to T.S. Eliot in that rose-garden. What we do know is that it formed the basis for Four Quartets, arguably the greatest English poem written in the twentieth century. Luckily it turns out that Martin Heidegger, when not pondering the meaning of being, spent a great deal of time thinking and writing about the kind of event that Eliot experienced. This essay explores how Heidegger developed the concept of Ereignis, “event” which, in the (...) context of Eliot’s poetry, helps us understand an encounter with the “heart of light” a little better. (shrink)

Our question, in this paper, is about the plausibility of the expressivist account of one’s self- attribution of mental states. More to the point, we will strictly follow the principle of charity as a mean to show that an expressivist philosopher can have good and reasonable answers to the set of objections put together in so called “Geach’s point”. Using this method, we hope to give enough evidences that an expressivist philosopher has enough resources to build a plausible explanation (...) for one’s attribution of mental states to herself. (shrink)

This paper looks at the critical reception of two central claims of Peter Auriol’s theory of cognition: the claim that the objects of cognition have an apparent or objective being that resists reduction to the real being of objects, and the claim that there may be natural intuitive cognitions of nonexistent objects. These claims earned Auriol the criticism of his fellow Franciscans, Walter Chatton and Adam Wodeham. According to them, the theory of apparent being was what had led Auriol (...) to allow for intuitive cognitions of nonexistents, but the intuitive cognition of nonexistents, at its turn, led to scepticism. Modern commentators have offered similar readings of Auriol, but this paper argues, first, that the apparent being provides no special reason to think there could be intuitions of nonexistent objects, and second, that despite his idiosyncratic account of intuition, Auriol was no more vulnerable to scepticism than his critics. (shrink)

In his celebrated 'Good and Evil' (l956) Professor Geach argues as against the non-naturalists that ‘good’ is attributive and that the predicative 'good', as used by Moore, is senseless.. 'Good' when properly used is attributive. 'There is no such thing as being just good or bad, [that is, no predicative 'good'] there is only being a good or bad so and so'. On the other hand, Geach insists, as against non-cognitivists, that good-judgments are entirely 'descriptive'. By a consideration (...) of what it is to be an A, we can determine what it is to be a good A, even where the ‘A’ in question is ‘human being’. These battles are fought on behalf of naturalism, indeed, of an up-to-date Aristotelianism. Geach plans to 'pass' from the 'purely descriptive' man to good/bad man, and from human act to good/bad human act. I argue: (l) That the predicative 'good' does have a genuine sense and that it is a mistake to suppose that ‘good’ is a purely attributive adjective. This does not entail that the predicative good (as used by Moore) denotes a non-natural property, but his mistake, if any is metaphysical or ontological not conceptual. (2) That the attributive 'good' cannot be used to generate a naturalistic ethic. It is difficult to extract a set of biologically based requirements out of human nature that are a) reasonably specific; b) rationally binding or at least highly persuasive; and c) morally credible. -/- On the way I protest against Geach’s tendency to try to win arguments by affecting not to understand things. -/- My views to some extent anticipate those of Kraut in *Against Absolute Goodness*. (shrink)

The aim of the paper is to critically assess the idea that reasons for action are provided by desires. I start from the claim that the most often employed meta-ethical background for the Model is ethical naturalism; I then argue against the Model through its naturalist background. For the latter purpose I make use of two objections that are both intended to refute naturalism per se. One is G.E. Moore’s Open Question Argument, the other is Derek Parfit’s Triviality Objection. I (...) show that naturalists might be able to avoid both objections if they can vindicate the reduction proposed. This, however, leads to further conditions whose fulfillment is necessary for the success of the vindication. I deal with one such condition, which I borrow from Peter Railton and Mark Schroeder:the demand that naturalist reductions must be tolerably revisionist. In the remainder of the paper I argue that the most influential versions of the Model are intolerably revisionist. The first problem concerns the picture of reasons that many recent formulations of the Model advocate. By using an objection from Michael Bedke, I show that on this interpretation obvious reasons won’t be accounted for by the Model. The second problem concerns the idealization that is also often part of the Model. Invoking an argument of Connie Rosati’s, I show that the best form of idealization, the ideal advisor account, is inadequate. Hence, though not the knock down arguments they were intended to be, OQA and TO do pose a serious threat to the Model. (shrink)

Three-dimensional material models of molecules were used throughout the 19th century, either functioning as a mere representation or opening new epistemic horizons. In this paper, two case studies are examined: the 1875 models of van ‘t Hoff and the 1890 models of Sachse. What is unique in these two case studies is that both models were not only folded, but were also conceptualized mathematically. When viewed in light of the chemical research of that period not only were both of these (...) aspects, considered in their singularity, exceptional, but also taken together may be thought of as a subversion of the way molecules were chemically investigated in the 19th century. Concentrating on this unique shared characteristic in the models of van ‘t Hoff and the models of Sachse, this paper deals with the shifts and displacements between their operational methods and existence: between their technical and epistemological aspects and the fact that they were folded, which was forgotten or simply ignored in the subsequent development of chemistry. (shrink)

This paper offers an analysis of a hitherto neglected text on insoluble propositions dating from the late XiVth century and puts it into perspective within the context of the contemporary debate concerning semantic paradoxes. The author of the text is the italian logician Peter of Mantua (d. 1399/1400). The treatise is relevant both from a theoretical and from a historical standpoint. By appealing to a distinction between two senses in which propositions are said to be true, it offers an (...) unusual solution to the paradox, but in a traditional spirit that contrasts a number of trends prevailing in the XiVth century. It also counts as a remarkable piece of evidence for the reconstruction of the reception of English logic in italy, as it is inspired by the views of John Wyclif. Three approaches addressing the Liar paradox (Albert of Saxony, William Heytesbury and a version of strong restrictionism) are first criticised by Peter of Mantua, before he presents his own alternative solution. The latter seems to have a prima facie intuitive justification, but is in fact acceptable only on a very restricted understanding, since its generalisation is subject to the so-called revenge problem. (shrink)

The subject matter of this essay is Peter of John Olivi’s (ca.1248–98) conception of reason from the viewpoint of human action.

As the Zika virus pandemic continues to bring worry and fear to health officials and medical scientists, Centers for Disease Control and Prevention (CDC) and World Health Organization (WHO) have recommended that residents of the Zika-infected countries, e.g., Brazil, and those who have traveled to the area should delay having babies which may involve artificial contraceptive, particularly condom. This preventive policy, however, is seemingly at odds with the Roman Catholic Church’s position on the contraceptive. As least since the promulgation of (...) Paul VI’s 1968 encyclical, Humanae Vitae, the Church has explicitly condemned artificial birth control as intrinsic evil. However, the current pontiff, Pope Francis, during his recent visit to Latin America, remarked that the use of artificial contraception may not be in contradiction to the teaching of Humanae Vitae while drawing a parallel between the current Zika Crisis and the 1960’s Belgian Congo Nun Controversy. The pope mentioned that the traditional ethical principle of the lesser of two evils may be the doctrine that justified the exceptions. The authors of this paper attempt to expand the theological rationale of the pope’s suggestion. In so doing, the authors rely on casuistical reasoning as an analytic tool that compares the Belgian Congo Nun case and the given Zika case, and suggest that the former is highly similar to, if not the same as, the latter in terms of normative moral feature. That is, in both cases the use of artificial contraception is theologically justified in reference to the criteria that the doctrine of the lesser of two evils requires. The authors wish that the paper would provide a solid theological-ethical ground based on which condom-use as the most immediate and effective preventive measure can be recommended in numerous Catholic hospitals as well as among Catholic communities in the world, particularly the most Zika-affected and largest Catholic community in the world, Brazil – 123 million present Brazilian citizens are reported to be Roman Catholic. (shrink)