At least since Aristotle’s famous 'sea-battle' passages in On Interpretation 9, some substantial minority of philosophers has been attracted to the doctrine of the open future--the doctrine that future contingent statements are not true. But, prima facie, such views seem inconsistent with the following intuition: if something has happened, then (looking back) it was the case that it would happen. How can it be that, looking forwards, it isn’t true that there will be a sea battle, while also being true (...) that, looking backwards, it was the case that there would be a sea battle? This tension forms, in large part, what might be called the problem of future contingents. A dominant trend in temporal logic and semantic theorizing about future contingents seeks to validate both intuitions. Theorists in this tradition--including some interpretations of Aristotle, but paradigmatically, Thomason (1970), as well as more recent developments in Belnap, et. al (2001) and MacFarlane (2003, 2014)--have argued that the apparent tension between the intuitions is in fact merely apparent. In short, such theorists seek to maintain both of the following two theses: (i) the open future: Future contingents are not true, and (ii) retro-closure: From the fact that something is true, it follows that it was the case that it would be true. It is well-known that reflection on the problem of future contingents has in many ways been inspired by importantly parallel issues regarding divine foreknowledge and indeterminism. In this paper, we take up this perspective, and ask what accepting both the open future and retro-closure predicts about omniscience. When we theorize about a perfect knower, we are theorizing about what an ideal agent ought to believe. Our contention is that there isn’t an acceptable view of ideally rational belief given the assumptions of the open future and retro-closure, and thus this casts doubt on the conjunction of those assumptions. (shrink)

Robots today serve in many roles, from entertainer to educator to executioner. As robotics technology advances, ethical concerns become more pressing: Should robots be programmed to follow a code of ethics, if this is even possible? Are there risks in forming emotional bonds with robots? How might society--and ethics--change with robotics? This volume is the first book to bring together prominent scholars and experts from both science and the humanities to explore these and other questions in this emerging field. Starting (...) with an overview of the issues and relevant ethical theories, the topics flow naturally from the possibility of programming robot ethics to the ethical use of military robots in war to legal and policy questions, including liability and privacy concerns. The contributors then turn to human-robot emotional relationships, examining the ethical implications of robots as sexual partners, caregivers, and servants. Finally, they explore the possibility that robots, whether biological-computational hybrids or pure machines, should be given rights or moral consideration. Ethics is often slow to catch up with technological developments. This authoritative and accessible volume fills a gap in both scholarly literature and policy discussion, offering an impressive collection of expert analyses of the most crucial topics in this increasingly important field. (shrink)

Profoundly important ethical and political controversies turn on the question of whether biological life is an essential aspect of a human person, or only an extrinsic instrument. Lee and George argue that human beings are physical, animal organisms - albeit essentially rational and free - and examine the implications of this understanding of human beings for some of the most controversial issues in contemporary ethics and politics. The authors argue that human beings are animal organisms and that their personal identity (...) across time consists in the persistence of the animal organisms they are; they also argue that human beings are essentially rational and free and that there is a radical difference between human beings and other animals; criticize hedonism and hedonistic drug-taking; present detailed defenses of the prolife positions on abortion and euthanasia; and defend the traditional moral position on marriage and sexual acts. (shrink)

The papers contained in this special issue are evidence that the philosophy of conspiracy theory is undergoing a ‘normative turn’, with earlier concerns about the epistemological soundness of conspiracy theories now being supplemented by a shift to concerns about discursive and epistemic justice. This is a welcome development. Nonetheless, these normative concerns need to be seen within the context of an ongoing and largely undeclared disagreement between generalists and particularists over just how conspired the world really is.

Virtue ethics seems to be a promising moral theory for understanding and interpreting the development and behavior of artificial moral agents. Virtuous artificial agents would blur traditional distinctions between different sorts of moral machines and could make a claim to membership in the moral community. Accordingly, we investigate the “machine question” by studying whether virtue or vice can be attributed to artificial intelligence; that is, are people willing to judge machines as possessing moral character? An experiment describes situations where either (...) human or AI agents engage in virtuous or vicious behavior and experiment participants then judge their level of virtue or vice. The scenarios represent different virtue ethics domains of truth, justice, fear, wealth, and honor. Quantitative and qualitative analyses show that moral attributions are weakened for AIs compared to humans, and the reasoning and explanations for the attributions are varied and more complex. On “relational” views of membership in the moral community, virtuous machines would indeed be included, even if they are indeed weakened. Hence, while our moral relationships with artificial agents may be of the same types, they may yet remain substantively different than our relationships to human beings. (shrink)

How can formal methods be applied to philosophical problems that involve informal concepts of ordinary language? Carnap answered this question by describing a methodology that he called “explication." Strawson objected that explication changes the subject and does not address the original philosophical problem; this paper shows that Carnap’s response to that objection was inadequate and offers a better response. More recent criticisms of explication by Boniolo and Eagle are shown to rest on misunderstandings of the nature of explication. It is (...) concluded that explication is an appropriate methodology for formal philosophy. (shrink)

Epistemic contextualism is a recent and hotly debated position. In its dominant form, EC is the view that the proposition expressed by a given knowledge sentence depends upon the context in which it is uttered. What makes this view interesting and controversial is that ‘context’ here refers, not to certain features of the putative subject of knowledge or his/her objective situation, but rather to features of the knowledge attributor' psychology and/or conversational-practical situation. As a result of such context-dependence, utterances of (...) a given such sentence, made in different contexts, may differ in truth value. (shrink)

Roughly, animalism is the doctrine that each of us is identical with an organism. This paper explains and defends a hylemorphic version of animalism. I show how hylemorphic animalism handles standard objections to animalism in compelling ways. I also show what the costs of endorsing hylemorphic animalism are. The paper's contention is that despite the costs, the view is worth taking seriously.

The logic of ‘being informed’ gives a formal analysis of a cognitive state that does not coincide with either belief, or knowledge. To Floridi, who first proposed the formal analysis, the latter is supported by the fact that unlike knowledge or belief, being informed is a factive, but not a reflective state. This paper takes a closer look at the formal analysis itself, provides a pure and an applied semantics for the logic of being informed, and tries to find out (...) to what extent the formal analysis can contribute to an information-based epistemology. (shrink)

The notion of mutual aid, which Peter Kropotkin introduced in the 19th century, goes against the logic of competition as a natural condition, and instead shows how mutual aid is a more important factor to consider for the survival and flourishing of a group. The best cooperation strategies allow organisms to adapt to different types of changes in their environment—and we have witnessed a lot of these changes since the start of the COVID‐19 pandemic. This propensity towards cooperation is not (...) a foreign concept, despite how it seems to be overshadowed by individualism in Western societies. These reflections then lead us to believe it is possible to apply the anarchist philosophical principle of mutual aid to our social organizations, rather than giving priority, again and again, to competition and professional hierarchies, especially in healthcare systems, and particularly in hospitals were the majority of nurses work. For us, anarchist philosophical precepts, including but not limited to mutual aid, can be the key to a more adequate functioning of healthcare institutions. Anarchism can help to imagine the first steps needed to take to gradually move away from ideologies that encourage competition, professional hierarchies, and illegitimate authority. In this paper, we will first explore some anarchist philosophical precepts before turning to mutual aid as it is currently conceptualised, then highlight several concrete ways it is visible in nursing, as well as ways it can be applied in hospitals, and healthcare systems. (shrink)

Machine learning researchers distinguish between reinforcement learning and supervised learning and refer to reinforcement learning systems as “agents”. This paper vindicates the claim that systems trained by reinforcement learning are agents while those trained by supervised learning are not. Systems of both kinds satisfy Dretske’s criteria for agency, because they both learn to produce outputs selectively in response to inputs. However, reinforcement learning is sensitive to the instrumental value of outputs, giving rise to systems which exploit the effects of outputs (...) on subsequent inputs to achieve good performance over episodes of interaction with their environments. Supervised learning systems, in contrast, merely learn to produce better outputs in response to individual inputs. (shrink)

The aim of this book is to answer two important questions about the issue of normativity in epistemology: Why are epistemic reasons evidential, and what makes epistemic reasons and rationality normative? Bondy's argument proceeds on the assumption that epistemic rationality goes hand in hand with basing beliefs on good evidence. The opening chapters defend a mental-state ontology of reasons, a deflationary account of how kinds of reasons are distinguished, and a deliberative guidance constraint on normative reasons. They also argue in (...) favor of doxastic voluntarism—the view that beliefs are subject to our direct voluntary control—and embrace the controversial view that voluntarism bears directly on the question of what kinds of things count as reasons for believing. The final three chapters of the book feature a noteworthy critique of the instrumental conception of the nature of epistemic rationality, as well as a defense of the instrumental normativity of epistemic rationality. The final chapter defends the view that epistemic reasons and rationality are normative for us when we have normative reason to get to the truth with respect to some proposition, and it provides a response to the swamping problem for monistic accounts of value. (shrink)

ABSTRACT This article defends the following argument: what makes you and I valuable so that it is wrong to kill us now is what we are (essentially). But we are essentially physical organisms, who, embryology reveals, came to be at conception/fertilisation. I reply to the objection to this argument (as found in Dean Stretton, Judith Thomson, and Jeffrey Reiman), which holds that we came to be at one time, but became valuable as a subject of rights only some time later, (...) in virtue of an acquired characteristic. I argue against this position that the difference between a basic, natural capacity and some degree of development of such a capacity is a mere difference in degree, that this position logically implies the denial of equal personal dignity, and that the selection of the required degree of development of a capacity is necessarily arbitrary. (shrink)

Linear logic, introduced by Girard, is a refinement of classical logic with a natural, intrinsic accounting of resources. This accounting is made possible by removing the ‘structural’ rules of contraction and weakening, adding a modal operator and adding finer versions of the propositional connectives. Linear logic has fundamental logical interest and applications to computer science, particularly to Petri nets, concurrency, storage allocation, garbage collection and the control structure of logic programs. In addition, there is a direct correspondence between polynomial-time computation (...) and proof normalization in a bounded form of linear logic. In this paper we show that unlike most other propositional logics, full propositional linear logic is undecidable. Further, we prove that without the modal storage operator, which indicates unboundedness of resources, the decision problem becomes PSPACE-complete. We also establish membership in NP for the multiplicative fragment, NP-completeness for the multiplicative fragment extended with unrestricted weakening, and undecidability for fragments of noncommutative propositional linear logic. (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)

Descartes’ demon is a deceiver: the demon makes things appear to you other than as they really are. However, as Descartes famously pointed out in the Second Meditation, not all knowledge is imperilled by this kind of deception. You still know you are a thinking thing. Perhaps, though, there is a more virulent demon in epistemic hell, one from which none of our knowledge is safe. Jonathan Schaffer thinks so. The “Debasing Demon” he imagines threatens knowledge not via the truth (...) condition on knowledge, but via the basing condition. This demon can cause any belief to seem like it’s held on a good basis, when it’s really held on a bad basis. Several recent critics, Conee, Ballantyne & Evans ) grant Schaffer the possibility of such a debasing demon, and argue that the skeptical conclusion doesn’t follow. By contrast, we argue that on any plausible account of the epistemic basing relation, the “debasing demon” is impossible. Our argument for why this is so gestures, more generally, to the importance of avoiding common traps by embracing mistaken assumptions about what it takes for a belief to be based on a reason. (shrink)

This article is about the epistemic basing relation, which is the relation that obtains between beliefs and the reasons for which they are held. We need an adequate account of the basing relation if we want to have a satisfactory account of doxastic justification, which we should want to have. To that end, this article aims to achieve two goals. The first is to show that a plausible account of the basing relation must invoke counterfactual concepts. The second is to (...) set out two related analyses of the basing relation, each of which seems quite plausible. (shrink)

Abstract: There is no such thing as ‘the’ hylemorphic account of personal identity. There are several views that count as hylemorphic, and these views can be grouped into two main families—the corruptionist view, and the survivalist view. The differentiating factor is that the corruptionist view holds that the persistence of the soul is not sufficient for the persistence of the person, while the survivalist view holds that the persistence of the soul is sufficient for the persistence of the person. In (...) this paper, I argue that hylemorphists should prefer the corruptionist view. This project ought to be of interest to anyone working on issues of personal identity, not only because hylemorphic views are historically important, but also because they are currently receiving significant attention in the personal identity literature. (shrink)

Kant famously insisted that “the idea of the will of every rational being as a universally legislative will” is the supreme principle of morality. Recent interpreters have taken this emphasis on the self-legislation of the moral law as evidence that Kant endorsed a distinctively constructivist conception of morality according to which the moral law is a positive law, created by us. But a closer historical examination suggests otherwise. Kant developed his conception of legislation in the context of his opposition to (...) theological voluntarist accounts of morality and his engagement with conceptions of obligation found in his Wolffian predecessors. In order to defend important claims about the necessity and immediacy of moral obligation, Kant drew and refined a distinction between the legislation and authorship of the moral law in a way that precludes standard theological voluntarist theories and presents an obstacle to recent constructivist interpretations. A correct understanding of Kant's development and use of this distinction reveals that his conception of legislation leaves little room for constructivist moral anti-realism. (shrink)

D. Alan Shewmon has advanced a well-documented challenge to the widely accepted total brain death criterion for death of the human being. We show that Shewmon's argument against this criterion is unsound, though he does refute the standard argument for that criterion. We advance a distinct argument for the total brain death criterion and answer likely objections. Since human beings are rational animals – sentient organisms of a specific type – the loss of the radical capacity for sentience involves a (...) substantial change, the passing away of the human organism. In human beings total brain death involves the complete loss of the radical capacity for sentience, and so in human beings total brain death is death. (shrink)

One set of neglected problems consists of paradoxes of omniscience clearly recognizable as forms of the Liar, and these I have never seen raised at all. Other neglected problems are difficulties for omniscience posed by recent work on belief de se and essential indexicals. These have not yet been given the attention they deserve.

Healey et al. use experiments with chat dialogues to test the hypothesis that language co‐ordination is driven by ‘running repairs’. They replace signals of understanding such as “okay” with weaker, ‘spoof’ signals like “ummm”, and replace specific requests for clarification like “on the left?” with signals that suggest a higher degree of misunderstanding like “what?”. The latter manipulation causes participants to switch rapidly to more abstract forms of referring expression.

Let R(X, B) denote the class of probability functions that are defined on algebra X and that represent rationally permissible degrees of certainty for a person whose total relevant background evidence is B. This paper is concerned with characterizing R(X, B) for the case in whichX is an algebra of propositions involving two properties and B is empty. It proposes necessary conditions for a probability function to be in R(X, B), some of which involve the notion of statistical dependence. The (...) class of probability functions that satisfy these conditions, here denoted PI, includes a class that Carnap once proposed for the same situation. Probability functions in PI violate Carnap's axiom of analogy but, it is argued, that axiom should be rejected. A derivation of Carnap's model by Hesse has limitations that are not present in the derivation of PI given here. Various alternative probability models are considered and rejected. (shrink)

This paper reviews the largely psychological literature surrounding apparent failures of human rationality (sometimes referred to as 'the Rationality Wars') and locates it with respect to concepts and issues within more traditional epistemological inquiry. The goal is to bridge the gap between these two large and typically disconnected literatures – concerning rationality and the psychology of human reasoning, on the one hand, and epistemological theories of justified or rational belief, on the other – and to do so in such as (...) way as to expose interesting points of contact and convergence between them. (shrink)

Central to the contemporary dispute over 'naturalizing epistemology' is the question of the continuity of epistemology with science, i.e., how far purely descriptive, psychological matters can or should inform the traditional evaluative epistemological enterprise. Thus all parties tend to agree that the distinction between psychology and epistemology corresponds to a firm fact/value distinction. This is something Reid denies with respect to the first principles of common sense: while insisting on the continuity of epistemology with the rest of science, he does (...) not wish to derive an 'ought' from an 'is', nor to reduce the epistemological to the psychological. His view is that the first principles are constitutive principles, hence that they are simultaneously descriptive and prescriptive, and thus that with regard to them there is in this sense simply no fact/value gap to be bridged. (shrink)

The environmental impacts of anthropogenic climate change, from an increase in global temperatures melting polar ice caps to the generation of extreme weather events, appear to be happening even mo...

There is an important disagreement in contemporary epistemology over the possibility of non-epistemic reasons for belief. Many epistemologists argue that non-epistemic reasons cannot be good or normative reasons for holding beliefs: non-epistemic reasons might be good reasons for a subject to bring herself to hold a belief, the argument goes, but they do not offer any normative support for the belief itself. Non-epistemic reasons, as they say, are just the wrong kind of reason for belief. Other epistemologists, however, argue that (...) there can be cases where non-epistemic reasons directly offer normative support for the beliefs a subject holds. -/- My aim in this paper is to remove an apparent obstacle for the view that there can be non-epistemic normative reasons for belief, by showing that the existence of non-epistemic reasons for belief does not conflict with epistemic standards for the assessment of inference. More specifically, I aim to show that the following principles are compatible: -/- Epistemic Norm of Inference (ENI): Necessarily, for all subjects, S, and inferences, I: I is a good inference for S only if S can gain a (doxastically) epistemically justified belief in I’s conclusion on the basis of I’s premises. -/- Non-Epistemic Reasons for Belief (NERB): Possibly, for some subject, S, reason, R, and belief, B: R is a good (i.e., normative) reason for S to hold B, and R is not an epistemic reason for B. -/- Guidance: For all subjects S, potential reasons R, and beliefs/actions φ: In order for R to count as a normative reason for S to φ, it must be possible for S to take R into account as relevant to the determination of whether S ought to φ. -/- One might naturally think that these principles conflict, for if there are non-epistemic reasons for belief, then they must guide deliberation, and in guiding deliberation, they would violate epistemic standards. The aim of this paper is to show that no such conflict need arise. -/- Section 2 of the paper proceeds to set out the concept of an inference, and to sketch an epistemic framework for the assessment of inferences and arguments. Section 3 sets out the distinction between normative and motivating reasons, and briefly defends the view that there can be non-epistemic reasons for beliefs. Section 4 shows that non-epistemic reasons for belief are compatible with epistemic standards for inference, because any time a reason R is a good non-epistemic reason for a subject S to hold a belief B, there is an epistemically good inference available to S which takes R as a premise and which concludes with the meta-belief that S ought to hold B. So the paper employs a level-connecting principle between normative reasons for φ-ing and epistemic reasons for believing that one ought to φ. The paper ends with clarifications of that level-connecting principle, and responses to three objections. (shrink)

This article examines the debate about the normative relevance of social constructivism, arguing that the criticisms of Winner, Radder, and others are fundamentally accurate. The article argues that a combination of Radder's notion of nonlocal values and Martin's concern for deliberative interventions may offer a theoretical exit from the normative irrelevance that marks constructivism. The article goes on to suggest that theoretical and praxeological developments in two other literatures, participatory public policy analysis and deliberative democracy, may provide fruitful initiatives for (...) constructivist scholars eager to address normative concerns. The article next reviews a range of problems facing deliberative and participatory practices and suggests ways in which constructivist insights might help to advance deliberative theory. (shrink)

Animalism is the doctrine that you and I are animals. Like any substantive philosophical position, animalism faces objections. For example, imagine a case of conjoined twins, where there are two heads, but only one “body,” and where each head seems to have its own typically human and fully discrete mental life. It would be natural to assume that each of the twins is a thing like you and me—each twin is one of us. But it appears that each twin cannot (...) be a distinct human animal, since it appears in this case that there is only one animal. So it appears that animalism renders the wrong verdict in this case. I present two responses to this worry, drawing on Aristotelian claims about the centrality of sensation to animals, and on an account of organism-hood from Maureen and Samuel Condic. I close by considering craniopagus parasiticus and cephalopagus, and show the Aristotelian response is effective in such cases as well. (shrink)

I develop and refine an argument for the total brain death criterion of death previously advanced by Germain Grisez and me: A human being is essentially a rational animal, and so must have a radical capacity for rational operations. For rational animals, conscious sensation is a pre-requisite for rational operation. But total brain death results in the loss of the radical capacity for conscious sensation, and so also for rational operations. Hence, total brain death constitutes a substantial change—the ceasing to (...) be of the human being. Objections are considered, including the objection that total brain death need not result in the loss of capacity for sensation, and that damage to the brain less than total brain death can result in loss of capacity for rational operations. (shrink)

The past 15 years have witnessed an increasing interest in the comparative study of language and music as cognitive systems. This book presents an interdisciplinary study of language and music, exploring the following core areas - structural comparisons, evolution, learning and processing, and neuroscience.

Some claim Kant’s commitment to the explanatory priority of judgments over concepts is one of his most important contributions to the philosophy of mind. There is, however, extensive disagreement over the nature and extent of this commitment. Existing interpretations ignore a substantial body of textual evidence and offer no account of the origins of Kant’s view. This paper corrects for these deficiencies. I explain, first, the relevant accounts of concept possession Kant encountered in the writings of his predecessors; and, second, (...) how within this context he first expressed a commitment to the view that conceptual content is explanatorily dependent on acts of judgment. I then argue that Kant endorsed a second form of discursive primacy, namely, the view that every use of a concept in conscious thought about an object has the form of a judgment. (shrink)

This paper presents an account of the nature of desire, informed by psychology and neuroscience, which entails that hunger is not a desire. The account is contrasted with Schroeder’s well-known empirically-informed theory of desire. It is argued that one significant virtue of the present account, in comparison with Schroeder’s theory, is that it draws a sharp distinction between desires and basic drives, such as the drive for food. One reason to draw this distinction is that experiments on incentive learning show (...) that desires and basic drives influence action in different ways. (shrink)

The Law of Non-Contradiction holds that both sides of a contradiction cannot be true. Dialetheism is the view that there are contradictions both sides of which are true. Crucial to the dispute, then, is the central notion of contradiction. My first step here is to work toward clarification of that simple and central notion: Just what is a contradiction?

In various places we have defended the position that a new human organism, that is, an individual member of the human species, comes to be at fertilization, the union of the spermatozoon and the oocyte. This individual organism, during the ordinary course of embryological development, remains the same individual and does not undergo any further substantial change, unless monozygotic twinning, or some form of chimerism occurs. Recently, in this Journal Jason Morris has challenged our position, claiming that recent findings in (...) reproductive and stem cell biology have falsified our view. He objects to our claim that a discernible substantial change occurs at conception, giving rise to the existence of a new individual of the human species. In addition, he objects to our claim that the embryo is an individual, a unified whole that persists through various changes, and thus something other than a mere aggregate of cells. Morris raises a number of objections to these claims. However, we will show that his arguments overlook key data and confuse biological, metaphysical, and ethical questions. As a result, his attempts to rebut our arguments fail. (shrink)

Epistemic Contextualism is the view that “knows that” is semantically context-sensitive and that properly accommodating this fact into our philosophical theory promises to solve various puzzles concerning knowledge. Yet Epistemic Contextualism faces a big—some would say fatal—problem: The Semantic Error Problem. In its prominent form, this runs thus: speakers just don’t seem to recognise that “knows that” is context-sensitive; so, if “knows that” really is context-sensitive then such speakers are systematically in error about what is said by, or how to (...) evaluate, ordinary uses of “S knows that p”; but since it's wildly implausible that ordinary speakers should exhibit such systematic error, the expression “knows that” isn't context-sensitive. We are interested in whether, and in what ways, there is such semantic error; if there is such error, how it arises and is made manifest; and, again, if there is such error to what extent it is a problem for Epistemic Contextualism. The upshot is that some forms of The Semantic Error Problem turn out to be largely unproblematic. Those that remain troublesome have analogue error problems for various competitor conceptions of knowledge. So, if error is any sort of problem, then there is a problem for every extant competitor view. (shrink)