We investigate a recently devised polyhedral semantics for intermediate logics, in which formulas are interpreted in n-dimensional polyhedra. An intermediate logic is polyhedrally complete if it is complete with respect to some class of polyhedra. The first main result of this paper is a necessary and sufficient condition for the polyhedral completeness of a logic. This condition, which we call the Nerve Criterion, is expressed in terms of Alexandrov’s notion of the nerve of a poset. It affords a purely combinatorial (...) characterisation of polyhedrally complete logics. Using the Nerve Criterion we show, easily, that there are continuum many intermediate logics that are not polyhedrally complete but which have the finite model property. We also provide, at considerable combinatorial labour, a countably infinite class of logics axiomatised by the Jankov–Fine formulas of ‘starlike trees’ all of which are polyhedrally complete. The polyhedral completeness theorem for these ‘starlike logics’ is the second main result of this paper. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Toward a Fictionalist Psychiatry?Sam Wilkinson, PhD (bio)I am deeply sympathetic to what Giulio Ongaro (2024a, 2024b, 2024c) writes in these three excellent interlocking papers. I will argue that there is a slightly more efficient way of approaching these issues. It involves adopting fictionalism rather than externalism (although fictionalism can accommodate externalist insights). Fictionalism is something that Ongaro briefly, and approvingly, mentions, in the final paper, but there is an (...) implicit realism in the initial approach. I am not sure there is much disagreement, however, and perhaps we end up in the same place, having approached from different starting points. The fictionalist approach is largely compatible with all of the substantive things Ongaro wants to say, but is, strictly speaking, in tension with the most natural interpretation of externalism, namely, construed as a form of descriptivism and realism (two notions I unpack later).Externalism, Evaluativism, and Social IntegrationA major theme of the first paper is that mainstream internalist Western psychiatry is bad at integrating the social dimension of mental illness. I agree. Furthermore, recent externalistic (enactive and predictive processing) approaches, while better, are still lacking in that they collapse the “social” into the “psychosocial.” Again, I agree. But my diagnosis (excuse the pun) is slightly different. The social dimension of illness concerns in large part the evaluative nature of illness, not the need to descriptively, causally capture a complex, objectively real phenomenon called “illness.”Having said this, in integrating this evaluative social dimension, we need to tread carefully lest we fail to meet the “demarcation challenge” (Murphy, 2008). This concerns the challenge of demarcating different kinds of problem. Humans have always had problems, for which they have needed help, accommodation, allowances made, and so on, but how do you distinguish mental health problems, from other kinds of problems? How do you distinguish money woes, or marital strife, both of which certainly cause unhappiness, or even psychological states that look like psychiatric symptoms (e.g., anxiety, low mood), from properly mental health problems?The biomedical “internalist” says: Easy! Either there is something objectively wrong with you, or there is not. However, notice that this is exactly [End Page 337] what externalists can say too, to the extent that they are trying to describe and define disorder in value-free terms. The only difference is that the internalist will talk about what is wrong within the biological boundaries of the organism, whereas the externalist will go beyond that.Externalism about a particular phenomenon, if it is to be a non-trivial position, needs to be sensitive to the distinction between cause and constitution (or what Adams & Azaiwa [2001] call “coupling-constitution confusion”). We see this in externalism about the mind in general. In the Extended Mind Hypothesis (Clark & Chalmers 1998), the claim is not that Otto’s notebook causally contributes to Otto’s mind (his belief about where MOMA is). Nobody would deny that. The interesting claim is that the notebook is constitutive of his belief: it is literally part of his mind. Similarly, nobody is denying that external (e.g., social) factors cause mental health problems, the question is: Do they constitute those problems? Externalism takes this question seriously and answers in the affirmative, at least in some cases. But the articulation of this has to be nuanced.Suppose I have crippling anxiety over financial concerns. Anxiety can be a mental health problem, but if, in this case, you transferring money into my bank account makes my anxiety disappear, then one might think this is not a mental health problem. It is a money problem. Or is it? Enter fictionalism (Wilkinson, 2022).Fictionalism is the view that calling someone mentally ill is not describing them as having a particular property, but involves something like engaging in a fiction, a fiction that has been constructed in order to encourage certain courses of action. According to fictionalism, given the facts, there is a lot of wiggle room about how we are to think of, and respond to, people’s problems.To borrow some insights from meta-ethics, when we examine normative discourse (one canonical domain being ethics) we can ask: what does the discourse do? And what... (shrink)

Although the neoconservative movement has come to dominate American conservatism, this movement has its origins in the old Marxist Left. Communists in their younger days, as the founders of neoconservatism, inverted Marxist doctrine by arguing that moral values and not economic forces were the primary movers of history. Yet the neoconservative critique of biotechnology still borrows heavily from Karl Marx and owes more to the German philosopher Martin Heidegger than to the Scottish philosopher and political economist Adam Smith. Loath to (...) identify these sources - or perhaps unaware of them - neoconservatives do not acknowledge these intellectual underpinnings or their implications. Thus, in the final analysis, their critique is incoherent and even internally inconsistent. By not acknowledging and embracing their intellectual roots, neoconservatives are left with a deeply ambivalent and often confused view of biotechnology and the society that gives rise to it. (shrink)

Tento článek se zabývá kritickým shrnutím stěžejních myšlenek a úvah vyjádřených v knize Vyhořelá společnost. Autorem pěti esejů, jež tvoří tuto knihu, je německy píšící filozof pocházející z korejského Soulu Byung-Chul Han. Myšlenky tohoto autora jsou podrobně rozpracovány v eseji Společnost únavy, který byl do knihy logicky zařazen na první místo. Ústřední myšlenkou tohoto pojednání, a vlastně celého souboru autorových úvah, je stávající úbytek negativity, jenž obklopuje současného člověka a jenž ústí do přemíry pozitivity a vzniku společnosti výkonu. Výsledkem této (...) okolnosti je dle Hana fakt, že současný člověk se stává sám sobě vykořisťovatelem. Tento ústřední motiv dále rozvádí následující čtyři eseje. Autor článku se staví kriticky k některým Hanovým tezím a zároveň nachází paralely k Hanovým hlavním myšlenkám v díle Mít či být? Ericha Fromma. Autor především zpochybňuje Hanův konstrukt paradoxní svobody a rovněž rozporuje Hanem ohlašovaný konec virové epochy. (shrink)

Velmans (1991a; 1991b) proposed that consciousness plays a minor explanatory role in the information processing approach and that unconscious mechanisms process stimuli and responses and intervene between them. In contrast, the present commentary describes a thought experiment suggesting that, although input information is initially processed unconsciously, subsequent processing involves consciousness, and consciousness plays an important role in the explanation of behavior.

The paper proposes a practical answer to Duhem's problem within the framework of experimental psychology. First, this problem is briefly discussed; second, two studies in psychology are presented illustrating how theories are tested. Thirdly, based on the foregoing, an approach called the “Empirical Reasoning” is developed and justified. It is shown that the ER approach can successfully cope with Duhem's problem. Finally, the ER approach and the Error Statistics approach of Mayo are critically compared with regard to Duhem's problem.

Unlike the sciences (physics), psychology has not developed in any of its areas (such as perception, learning, cognition) a top-theory like Newtonian theory, the theory of relativity, or quantum theory in physics. This difference is explained by a methodological discrepancy between the sciences and psychology, which centers on the measurement procedure: in psychology, measurement units similar to those in physics have not been discovered. Based on the arguments supporting this claim, a methodological distinction is made between the sciences and psychology (...) as an associational science. It is suggested that that these two kinds of science generate two different classes of technologies. The possibility that in psychology there is a connection between the issue of measurement and the unsolved consciousness/brain problem is discussed. (shrink)

The present paper develops a defense for the representational approach to memory which wilcox and Katz believe leads to logical paradoxes. It is suggested that three of the central arguments of Wilcox and Katz make sense when one ascribes to the representational theory a "human-like" model, rather is based. the fourth major argument of Wilcox and Katz, which in the present article had been labelled the "eliminative' argument, has been shown to confuse ontological assuptions with logical considerations.

In this book, Sam S. Rakover provides an explanation of human behavior and the behavior of animals, such as monkeys, dogs, and cats.

Abstract:The paradox of fiction deals with the following question: how is it possible to react emotionally to a fictive image? After a discussion of two important solutions to the paradox, I present an outline of my solution. The "real/fictional information-processing" theory proposes that all kinds of stimuli (real or fictive) are undergoing information processing by the cognitive system. Each stimulus consists of bundle of particular stimuli (for example, a cat) and certain indicators that specify whether it is real or fictitious. (...) Based on the result of this processing, one's emotional response is done adequately—it fits reality. (shrink)

An opponent thesis to that of incommensurability—the commensurability approach—is proposed. The new thesis is based on the delineation of an empirical comparative metatheory for comparing theories of different paradigms. The method of multidimensional scaling together with the proximity-predictability hypothesis instantiate and substantiate this metatheory. The scaling of mind body theories, and the confirmation of certain predictions derived from MDS and the PP hypothesis concerning the relations that exist among these theories, are brought as actual examples supporting the present paper's approach.

Locke on natural rights and the natural law -- Self-consciousness, self-ownership, and natural rights -- From natural rights to the natural law -- Natural morality -- Practical applications.

As controversial as Lockean interpretation relating to the ideas of the law of nature and natural rights has always been, few would dispute the inextricable connection between them in the context of John Locke's thought. The historical development of natural rights language out of the natural law tradition is mirrored to a certain extent in the order within and between Locke's own writings. Locke intimates a persuasive account of the concurrent univocal property of God and the human being in the (...) particular human being herself. The particular human being is the property of God and herself in the very same sense of the word "property", i.e. the product of workmanship or labor. Both slavery and suicide fall foul of Locke's doctrine of the law of nature and natural rights: slavery is a violation of self‐ownership, and suicide is as direct a violation of divine ownership as one can imagine. (shrink)

Understanding Human Conduct: The Innate and Acquired Meaning of Life develops the Consciousness-Meaning (CM) model, which aims to explain why most human beings are able to lead a meaningful life without undergoing an existentialist life crisis.

In lieu of an abstract, here is a brief excerpt of the content:How Old Are Modern Rights? On the Lockean Roots of Contemporary Human Rights DiscourseS. Adam SeagraveArguing for the proper placement of John Locke’s natural rights theory within intellectual history is a particularly high-stakes enterprise for historians of political thought and political theorists alike. This is due in large part to the fact that, as Brian Tierney notes in his recent study, it is “widely agreed that Locke’s work was (...) an important influence in the formation of modern liberal ideas, including ideas concerning rights.”1 Our understanding of Locke thus contributes to our reflective self-understanding as “modern liberals” (of one stripe or another) to an extent perhaps unequaled by any other thinker so far removed from our own time.As a result of the rare promise of studying Locke’s natural rights theory, there has been no shortage of scholarly attempts to determine its place in intellectual history on the basis of Locke’s own writings and their relation both to preceding and subsequent traditions and modes of thought. Although John Dunn had argued in his influential study that Locke’s political thought was too thoroughly steeped in theology to remain relevant in the contemporary context, this thesis has since been persuasively challenged (albeit in very different ways) by Simmons, Zuckert and Waldron, among others.2 Each of these scholars has contributed to an emerging agreement [End Page 305] that the thread of Locke’s natural rights theory may indeed be carried all the way up to current political and moral debates in some form or another. The precise length of this thread as it extends in the other historical direction has, however, remained a point of heated controversy. The scholarly literature on this issue may be broadly described in terms of a spectrum determined by two opposing emphases in understanding the relation of Locke’s natural rights theory to its medieval predecessors: a continuity emphasis and a discontinuity emphasis.On the discontinuity end of the spectrum stand those such as Michel Villey, Leo Strauss, C. B. Macpherson and, more recently, Michael Zuckert who argue for the existence of some sort of “Copernican moment” separating medieval natural rights theories from their modern counterparts.3 Whether this moment is identified with William of Ockham in the fourteenth century or Hobbes in the seventeenth century, these scholars tend to emphasize the distinctively “modern” character of Lockean natural rights theory and its significant departures from medieval modes of thought. According to many of the advocates of discontinuity, Lockean natural rights are not only “modern” in their political applications but also in their more profound meaning as foundations for morality, and particularly in their newly conceived relation to the concept of natural law.4The continuity end of the spectrum is, perhaps, more variegated, including scholars such as Tuck, Tierney, Tully, Oakley, Nederman, Coleman, and Swanson, among others.5 Despite their many important differences, [End Page 306] these scholars each focus upon the similarities between various elements or strains of medieval thought and modern natural rights theories rather than the differences between them. Insofar as the scholars on this end of the spectrum explicitly consider Locke’s natural rights theory, they tend to emphasize Locke’s intellectual debt to various preceding traditions and thinkers rather than his innovations upon them. Building explicitly upon the work of Tuck, Tierney and Tully, Janet Coleman finds “some extraordinarily Lockean moments” in the medieval thinkers John of Paris and Godefroid of Fontaines, and argues that Locke ought to be understood as contributing to this medieval tradition of thought rather than departing from it.6 Scott Swanson, in turn, builds upon Coleman’s scholarship in carefully connecting medieval understandings of the rights of subsistence and the principle of extreme necessity to Locke’s natural rights theory. Swanson initially goes even further than Coleman in asserting that “all of Locke’s celebrated doctrine is here [in John of Paris’s writings] offered in a nutshell” before concluding on the more moderate note, echoed by Cary Nederman, that Locke’s “application of natural rights of subsistence to politics” may indeed have been something “new under the sun.”7Brian Tierney, who has long been a prominent... (shrink)

The difficulty of explaining the outputs of artificial intelligence (AI) models and what has led to them is a notorious ethical problem wherever these technologies are applied, including in the medical domain, and one that has no obvious solution. This paper examines the proposal, made by Luciano Floridi and colleagues, to include a new ‘principle of explicability’ alongside the traditional four principles of bioethics that make up the theory of ‘principlism’. It specifically responds to a recent set of criticisms that (...) challenge the supposed need for such a principle to perform an enabling role in relation to the traditional four principles and therefore suggest that these four are sufficient without the addition of explicability. The paper challenges the critics’ premise that explicability cannot be an ethical principle like the classic four because it is explicitly subordinate to them. It argues instead that principlism in its original formulation locates the justification for ethical principles in a midlevel position such that they mediate between the most general moral norms and the contextual requirements of medicine. This conception of an ethical principle then provides a mold for an approach to explicability on which it functions as an enabling principle that unifies technical/epistemic demands on AI and the requirements of high-level ethical theories. The paper finishes by anticipating an objection that decision-making by clinicians and AI fall equally, but implausibly, under the principle of explicability’s scope, which it rejects on the grounds that human decisions, unlike AI’s, can be explained by their social environments. (shrink)

This paper contends that the natural law theory of Saint Thomas Aquinas has been inappropriately removed from its foundation in the classical philosophical traditions of Cicero and Aristotle. Critics charge that because it refers to the eternal law, and hence divine revelation, St. Thomas’s natural law theory is not “natural.” The author in reply demonstrates the Ciceronian and Aristotelian—and therefore pagan, naturalist—roots of the Thomistic theory. St. Thomas’s discussion of natural law in the Summa mirrors Cicero’s attempted derivation of natural (...) law from “a rational encounter with objective reality.” Further, St. Thomas’s Summa includes demonstrations that God is the Cause of all objective reality. This truth does not however deny the “naturalness” of human rational consideration of reality, but rather shows that humans internally apprehend an external order which owes its reality to the First Cause of all being. Human reason and natural law thereby necessarily involve a participation in the eternal law. The author concludes that attempts to dissociate Thomistic natural law theory from its Ciceronian and Aristotelian roots lessen the force and persuasive power of the former. The proper approach involves, not an abandonment of the traditional theory, but its further development and its application to present issues. (shrink)

I defend affirmative action on the ground that it increases certain people’s ability to exercise their basic liberties, rather than because it rectifies injustice in the narrow context of educational admission procedures. I present this justification using a Rawlsian contractualist framework to forge a “nonideal principle of justice.” Drawing on social science, I argue that this principle supports affirmative-action policies like those in the contemporary U.S., and blocks the objection that such policies are unfair. In closing, I show how my (...) account can be used to refine some features of contemporary affirmative-action policies, and I reflect more generally on the value of nonideal principles of justice for tackling exigent topics. (shrink)

Mark Coeckelbergh (Int J Soc Robot 1:217–221, 2009) argues that robot ethics should investigate what interaction with robots can do to humans rather than focusing on the robot’s moral status. We should ask what robots do to our sociality and whether human–robot interaction can contribute to the human good and human flourishing. This paper extends Coeckelbergh’s call and investigate what it means to live with disembodied AI-powered agents. We address the following question: Can the human–AI interaction contribute to our moral (...) development? We present an empirically informed philosophical analysis of how the AI personal assistant Siri changes its users’ way of life, based on the responses obtained from 20 semi-directive individual interviews with Siri users. We identify changes in the users’ social interaction associated with the adoption of Siri. These changes include: (1) the indirect effect of reducing opportunities of human interaction, (2) the second-order effect of diminished expectations toward each other in a community, and (3) the acquired preference to obtain hassle-free interaction with Siri over human interaction. We examine them in relation to concerns that are voiced in the current debates over the rise of AI, namely the suspicion that humans could become overly reliant on AI (Danaher 2019) and the worry that social AI could impede on moral development (Fröding and Peterson, Ethics Inf Technol 23:207–214, 2012; Li, Ethics Inf Technol 23:543–550, 2021). We analyze the ethical costs that come from these changes in light of virtue ethics and address potential objections along the way. We end by offering directions for thinking about how to live with AI personal assistant while preserving favorable conditions for moral development. (shrink)

This paper defends a direct reference view of names including empty names. The theory says that empty names literally have no meaning and cannot be used to express truths. Names, including empty names, are associated with accompanying descriptions that are implicated in pragmati‐cally imparted truths when empty names are used. This view is defended against several important objections having to do with differences in names, descriptions associated with the names, and considerations of modality. The view is shown to be superior (...) to an alternative theory treating empty names as the “descriptive names” of Kripke and Evans. (shrink)