We present an extension of the basic revision theory of circular definitions with a unary operator, □. We present a Fitch-style proof system that is sound and complete with respect to the extended semantics. The logic of the box gives rise to a simple modal logic, and we relate provability in the extended proof system to this modal logic via a completeness theorem, using interpretations over circular definitions, analogous to Solovay’s completeness theorem forGLusing arithmetical interpretations. We adapt our proof to (...) a special class of circular definitions as well as to the first-order case. (shrink)

As local food activities expand and grow, an important question to answer is how various participants contribute to a local food system’s overall vitality and strength. This paper does so by focusing on the relationships between locally-oriented farm and retail actors and assessing what the configuration of these relationships tells us about the workings of the broader local food system. Such an analysis reveals two things. Empirically, it shows the important role food retailers play in the overall vibrancy of local (...) food exchanges: food retailers form crucial links holding the broader system together and significantly expanding consumer access to local foods. Further, different retailer types have distinct impacts on network configurations, each serving particular roles in the development and maintenance of local food systems. Methodologically, this paper shows the value of applying social network analysis techniques to the study of local food systems: such an approach yields insights that may not be as readily assessable from other strategies. In this paper, I overview common network analysis techniques and apply them to a case study of local food activities in New England, suggesting how such an approach might be applied to local food systems in other places. (shrink)

This article examines selected texts in which Martin Heidegger thematizes the ontology of images, in order to adduce a view of how he under­stands their merits and limitations. I am primarily interested in the images seen in art works, especially those in film and photography, given Heidegger’s strong criticism of the latter alongside other 20th-century communicative media. The goal of the article is not to determine what is Heidegger’s central or overall position regarding images, as it is not clear that (...) he has such a position. Rather, the goal is to analyze how his various statements on images, as well as imagination, fit together. I contrast Heidegger’s critical views in “The Age of the World Picture” with other texts in which he describes images more favorably. I also devote some space to texts in which Heidegger treats imagination and the origin of images more broadly. (shrink)

There appears to be few, if any, limits on what sorts of logical connectives can be added to a given logic. One source of potential limitations is the motivating ideology associated with a logic. While extraneous to the logic, the motivating ideology is often important for the development of formal and philosophical work on that logic, as is the case with intuitionistic logic. One family of logics for which the philosophical ideology is important is the family of relevant logics. In (...) this paper, I explore the limits of what a relevant connective is, showing how some basic criteria motivated by the ideology of relevant logicians provide robust limits on potential connectives. These criteria provide some plausible necessary conditions on being a relevant connective. (shrink)

In this article, we present a definition of a hyperintensionality appropriate to relevant logics. We then show that relevant logics are hyperintensional in this sense, drawing consequences for other non-classical logics, including HYPE and some substructural logics. We further prove results concerning extensionality in relevant logics. We close by discussing related concepts for classifying formula contexts and potential applications of these results.

This paper criticizes three assumptions regarding terrorism and the agents who carry it out: 1) terrorists are always indiscriminate in their targeting, 2) terrorism is never effective in combating oppression, and 3) terrorists never participate in fair negotiations as they merely wish to switch places with their oppressors. By criticizing these three prejudices against terrorism, the paper does not attempt to justify or excuse terrorism generally nor in the specific case of Sri Lanka which is examined. Instead, it creates the (...) necessary room for such justifications or excuses to be critically appraised by dismantling the popular myths surrounding terrorism. (shrink)

The operational semantics of Urquhart is a deep and important part of the development of relevant logics. In this paper, I present an overview of work on Urquhart’s operational semantics. I then present the basics of collection frames. Finally, I show how one kind of collection frame, namely, functional set frames, is equivalent to Urquhart’s semilattice semantics.

This article responds to critical views of John Rhym, Martin Rossouw, Ludo de Roo, and Annie Sandrussi on my 2017 book Phenomenology of Film: A Heideggerian Account of the Film Experience. The article also takes up positive footholds from the analyses of Chiara Quaranta and Jason Wirth. The main topics addressed include Martin Heidegger’s ontic-ontological distinction; the notion of film-as-philosophy; being-in-the-world read as being-in-the-film-world; and questions surrounding the facticity and identity of the film viewer.

This interdisciplinary study explores the relevance and application of Martin Heidegger’s phenomenology to key issues in the philosophy film. It develops a comprehensive look at how Heidegger’s thought illuminates historical and contemporary problems the film medium poses to philosophers.

In this paper, I motivate the addition of an actuality operator to relevant logics. Straightforward ways of doing this are in tension with standard motivations for relevant logics, but I show how to add the operator in a way that permits one to maintain the intuitions behind relevant logics. I close by exploring some of the philosophical consequences of the addition.

In classically based modal logic, there are three common conceptions of necessity, the universal conception, the equivalence relation conception, and the axiomatic conception. They provide distinct presentations of the modal logic S5, all of which coincide in the basic modal language. We explore these different conceptions in the context of the relevant logic R, demonstrating where they come apart. This reveals that there are many options for being an S5-ish extension of R. It further reveals a divide between the universal (...) conception of necessity on the one hand, and the axiomatic conception on the other: The latter is consistent with motivations for relevant logics while the former is not. For the committed relevant logician, necessity cannot be the truth in all possible worlds. (shrink)

Justification logics provide frameworks for studying the fine structure of evidence and justification. Traditionally, these logics do not impose any closure requirements on justification. In this paper, we argue that for some applications they should subject justification to closure under some variety of logical consequence. Specifically, we argue, building on ideas from Beall, that the non-classical logic FDE offers a particularly attractive notion of consequence for this purpose and define a justification logic where justification is closed under FDE consequence. We (...) show the resulting logic to be sound and complete. Lastly, we discuss how the closure of justification under FDE ontrasts closure under related non-classical logics and how our approach contrasts with some alternatives. (shrink)

This book examines influential conceptions of sport and then analyses the interplay of challenging borderline cases with the standard definitions of sport. It is meant to inspire more thought and debate on just what sport is, how it relates to other activities and human endeavors, and what we can learn about ourselves by studying sport.

This interdisciplinary analysis presents an innovative examination of the nature of pride and humility, including all their slippery nuances and points of connection. By combining insights from visual art, literature, philosophy, religious studies, and psychology, this volume adapts a complementary rather than an oppositional approach to examine how pride and humility reinforce and inform one another. This method produces a robust, substantial, and meaningful description of these important concepts. The analysis takes into account key elements of pride and humility, including (...) self-esteem and self-confidence, human interconnectedness, power's function and limitations, and the role of fear. Shawn R. Tucker explores the many inflections of these terms, inflections that cast them by turns as positive or negative, emboldening or discouraging, and salubrious or vicious depending upon the context and manner in which they are used. (shrink)

In relevant logics, necessary truths need not imply each other. In justification logic, necessary truths need not all be justified by the same reason. There is an affinity to these two approaches that suggests their pairing will provide good logics for tracking reasons in a fine-grained way. In this paper, I will show how to extend relevant logics with some of the basic operators of justification logic in order to track justifications or reasons. I will define and study three kinds (...) of frames for these logics. For the first kind of frame, I show soundness and highlight a difficulty in proving completeness. This motivates two alternative kinds of frames, with respect to which completeness results are obtained. Axioms to strengthen the justification logic portions of these logics are considered. I close by developing an analogy between the dot operator of justification logic and theory fusion in relevant logics. (shrink)

Various theorists have endorsed the “communication argument”: communicative capacities are necessary for morally responsible agency because blame aims at a distinctive kind of moral communication. I contend that existing versions of the argument, including those defended by Gary Watson and Coleen Macnamara, face a pluralist challenge: they do not seem to sit well with the plausible view that blame has multiple aims. I then examine three possible rejoinders to the challenge, suggesting that a context-specific, function-based approach constitutes the most promising (...) modification of the communication argument. (shrink)

One of the many claims about the value of local food is that local food exchanges generate trust between producers and consumers. To what degree is this actually the case and how does such trust develop? Drawing on interview and fieldwork data in one local food system in the Northeastern U.S., I show how local food participants build trust and reciprocity with one another in order to mitigate the challenges imposed by the conventional system. This trust and reciprocity builds primarily (...) through three mechanisms: reliable, positive relationships; demonstrations of good will toward one another; and a shared understanding of the value of locally-oriented food. Through these mechanisms, local food operators are able to build a healthy, stable local food system, able to better resist the pressures of the conventional system in which it must continually operate. (shrink)

POHLMAN S, CIBULKA NJ, PALMER JL, LORENZ RA and SMITHBATTLE L. Nursing Inquiry 2013; 20: 71–81 The placebo puzzle: examining the discordant space between biomedical science and illness/healingThe placebo response presents an enigma to biomedical science: how can ‘inert’ or ‘sham’ procedures reduce symptoms and produce physiological changes that are comparable to prescribed treatments? In this study, we examine this puzzle by explicating the discordant space between the prevailing biomedical paradigm, which focuses on a technical understanding of diagnosis and treatment, (...) and a broader understanding of illness and healing as relational and embodied. Although biomedical achievements are impressive, the knowledge resulting from this paradigm is limited by its ontological and epistemological assumptions. When the body and world are objectified, illness meanings, therapeutic relationships, and healing practices are dismissed or distorted. In spite of a robust critique of the tenets of biomedicine for guiding practice, the biomedical paradigm retains a tenacious hold on evidence-based medicine and nursing, downplaying our clinical understanding of the sentient body, patients’ life-worlds, and illness and healing. In reality, skilled nurses rely on multiple forms of knowledge in providing high-quality care to particular patients. Clinically wise nurses integrate their experience and knowledge of patients’ priorities, fears, and illness trajectories along with biomedical findings to make astute judgments and promote health and healing. (shrink)

In the Shadow of Bezalel: Aramaic, Biblical, and Ancient Near Eastern Studies in Honor of Bezalel Porten. Edited by AleJandro F. Botta. Culture and History of the Ancient Near East, vol. 60. Leiden: Brill, 2013. Pp. l + 429, illus. €228.

While Sylvia Wynter emphasizes the written word’s capacity to transform our systems of organizing knowledge, she repeatedly questions the extent to which novels can have this transformative capacity. Both her theoretical writing and the plot of her 1962 novel The Hills of Hebron emphasize the novel’s limitations. However, Wynter does not totally reject the form. Instead, she reimagines the novel through the idea of the “counter-novel,” developed in conjunction with her close reading of Ralph Ellison’s The Invisible Man. This essay (...) considers The Hills of Hebron as a counter-novel by analyzing the connections between novel’s two artist characters, The Hills of Hebron, and Wynter’s reading of The Invisible Man. Through this analysis, I argue that Wynter’s novel can be read as a substantial contribution to her theoretical corpus that has continued relevance to her challenge to transform dominant systems of knowledge production. (shrink)

Complex social and ethical problems are often most effectively solved by engaging them at the messy and uncomfortable intersections of disciplines and practices, a notion that grounds the InVisible Difference project, which seeks to extend thinking and alter practice around the making, status, ownership, and value of work by contemporary dance choreographers by examining choreographic work through the lenses of law, bioethics, dance scholarship, and the practice of dance by differently-abled dancers. This article offers a critical thesis on how bioethics (...) has come to occupy a marginal and marginalizing role in questions about the differently-abled body. In doing so, it has rendered the disabled community largely invisible to and in bioethics. It then defends the claim that bioethics – as a social undertaking pursued collaboratively by individuals from different disciplines – must take much better notice of the body and the embodied individual if it is to better achieve its ends, which include constructing a moral and just society. Finally, this article considers how the arts, and specifically dance, provides us with rich evidence about the body and our ability to respond positively to normally ‘othered’ bodies. It concludes that greater attention to empirical evidence like that being generated in InVisible Difference will help to expand the reach and significance of bioethics, and thereby its relevance to important questions about the status of bodies and bodily differences, which must be considered as central to its ambitions. (shrink)

We identify the locally finite graphs that are quantifier-eliminable and their first order theories in the signature of distance predicates. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

In Steve Jobs and Philosophy, sixteen philosophers take a close look at the inspiring yet often baffling world of Steve Jobs. What can we learn about business ethics from the example of Jobs? What are the major virtues of a creative innovator? How could Jobs successfully defy and challenge conventional business practices? How did Jobs combine values and attitudes previously believed to be unmixable? What does it really mean to “think different”? Can entrepreneurs be made or are they just born? (...) If Jobs didn’t make any major inventions, just what was his contribution? How is Jobs’s life illuminated by Buddhism? How does a counter-culture transform mainstream culture? What does Jobs teach us about the notions of simplicity and functionality in design? How do Jobs’s achievements alter the way we think about technology in relation to human life? (shrink)

ABSTRACTDecades of research demonstrate that most people have little knowledge or understanding of politics. Two recent works suggest that this reflects the limits of human cognitive capacity. Rather than being reasoned, political thinking is mostly preconscious, automatic, and recall driven. Consequently, it is vulnerable to contextual cueing, preexisting biases, and biological and genetic predispositions. However, this research is oriented by an inadequate understanding of cognition.

Various cell types cooperate to create a highly organized and dynamic micro-environmental niche in the bone marrow. Over the past several years, the field has increasingly recognized the critical roles of the interplay between bone marrow environment and hematopoietic cells in normal and deranged hematopoiesis. These advances rely on several new technologies that have allowed us to characterize the identity and roles of these niches in great detail. Here, we review the progress of the last several years, list some of (...) the outstanding questions in the field and propose ways to target the diseased environment to better treat hematologic diseases. Understanding the extrinsic regulation by the niche will help boost hematopoiesis for regenerative medicine. Based on natural development of hematologic malignancies, we propose that combinatory targeting the niche and hematopoietic intrinsic mechanisms in early stages of hematopoietic malignancies may help eliminate minimal residual disease and have the highest efficacy. The bone marrow is the home for blood-forming hematopoietic stem and progenitor cells. Normal generation of blood and immune cells depends on highly regulated interactions between these stem and progenitor cells with their surrounding environment. Emerging evidence suggests that therapeutic interventions directed at these cellular interdependencies can help boost hematopoiesis and eradicate malignant hematopoietic cells. (shrink)

ABSTRACTGiven its intimate relationship with the human body and its environment, biotechnology innovation, and more particularly stem cell research innovations as a part thereof, implicate diverse social and moral/ethical issues. This paper explores some of the most important and controversial moral concerns raised by human embryonic stem cell research , focusing on concerns relating to the wellbeing of the embryo and the wellbeing of society . It then considers how and whether these concerns are dealt with in regulatory instruments in (...) Argentina, a southern developing country, examining in particular whether the values underlying these concerns have been translated into practical and effective rules reflective of the primary moral positions advanced. It concludes that Argentina's current state of stem cell research governance fails to consistently reflect the moral positions that have formed and is inadequate given Argentina's activity in this field. (shrink)

In this paper, an incompleteness theorem for modal extensions of relevant logics is proved. The proof uses elementary methods and builds upon the work of Fuhrmann.

Mares and Goldblatt, 163–187, 2006) provided an alternative frame semantics for two quantified extensions of the relevant logic R. In this paper, I show how to extend the Mares-Goldblatt frames to accommodate identity. Simpler frames are provided for two zero-order logics en route to the full logic in order to clarify what is needed for identity and substitution, as opposed to quantification. I close with a comparison of this work with the Fine-Mares models for relevant logics with identity and a (...) discussion of constant and variable domains. (shrink)

An important question for proponents of non-contractive approaches to paradox is why contraction fails. Zardini offers an answer, namely that paradoxical sentences exhibit a kind of instability. I elaborate this idea using revision theory, and I argue that while instability does motivate failures of contraction, it equally motivates failure of many principles that non-contractive theorists want to maintain.

The ability to reason and think in a logical manner forms the basis of learning for most mathematics, computer science, philosophy and logic students. Based on the author's teaching notes at the University of Maryland and aimed at a broad audience, this text covers the fundamental topics in classical logic in an extremely clear, thorough and accurate style that is accessible to all the above. Covering propositional logic, first-order logic, and second-order logic, as well as proof theory, computability theory, and (...) model theory, the text also contains numerous carefully graded exercises and is ideal for a first or refresher course. (shrink)

Many existing theories of intellectual humility primarily focus on what it is to be a good learner. But learner is not the only epistemic role. An epistemic agent can frequently perform the role of a teacher who transmits rather than receives knowledge, or the role of a collaborator who works with others collectively on an intellectual project. I argue that there are fruitful ways of understanding intellectual humility that can account for how one excels at performing these alternative epistemic roles. (...) Specifically, I propose and defend a “selective self-decentering account” of intellectual humility: an individual is an intellectually humble person just in case that she is motivated to perform each of her epistemic roles well, is motivated to balance her epistemic roles well against each other, and has a strong disposition to decenter selective aspects of herself because of these motivations. This account allows intellectual humility to have both a basic form and various role-differentiated forms, and it is well-equipped to explain how an intellectually humble individual’s motivations and dispositions are properly sensitive to her epistemic role. (shrink)

Will stakeholder theory continue to transform how we think about business and society? On the occasion of this journal’s 60th anniversary, this review article examines the journal’s role in shaping stakeholder theory to date and suggests that it still has transformative potential. We conducted a bibliometric analysis of co-citations in the literature from 1984 to 2020. Reporting these results, we examine the field’s evolving structure. Contextualized theoretically as an accomplishment of institutional work—the creation of a meaningful and innovative field ideology—this (...) structure is remarkable for how it integrates ethical and behavioral arguments, invites engagement from adjacent domains, and arrives at important insights for business and society. We advance a research agenda consistent with this larger institutional project. (shrink)

It is widely agreed that reactive attitudes play a central role in our practices concerned with holding people responsible. However, it remains controversial which emotional attitudes count as reactive attitudes such that they are eligible for this central role. Specifically, though theorists near universally agree that guilt is a reactive attitude, they are much more hesitant on whether to also include shame. This paper presents novel arguments for the view that shame is a reactive attitude. The arguments also support the (...) view that shame is a reactive attitude in the sense that concerns moral accountability. The discussion thereby challenges both the view that shame is not a reactive attitude at all, suggested by philosophers such as R. Jay Wallace and Stephen Darwall, and the view that shame is a reactive attitude but does not concern moral accountability, recently defended by Andreas Carlsson and Douglas Portmore. (shrink)

In the aftermath of World War II, the government of the United States provided considerable funding for military projects that promised to provide a technological edge during the nascent Cold War. The most famous example is likely the V-2 rocket-testing program that began in the late 1940s. The 67 rockets launched from White Sands developed a knowledge base that was critically important to the launch of the first U.S. satellite in 1958 and to the subsequent manned space program. Less well (...) known are the large-scale information technology projects, undertaken in the 1950s and early 1960s, that provided a significant catalyst for research into digital computing, information processing, and the. (shrink)

This article explores the thought of Tomasso de Vio, Cardinal Cajetan, on grace, justification and merit, situating his position vis-à-vis medieval, Reformation, and modern interlocutors. It examines a wide spectrum of Cajetan's works including his commentary on the Summa theologiae, the controversial work De fide et operibus contra Lutheranos, and his biblical commentaries on Matthew and Romans. It makes the argument that Cajetan preserves a Thomist perspective on grace and human action as they pertain to justification and salvation; that is, (...) Cajetan denies merit to any human action preceding justification but allows for restricted instances of merit for persons in a state of grace. The study examines potentially divergent positions in Cajetan's works and argues for overall consistency. In doing so, it presents Cajetan's thought on doctrinal issues which unfolded during the Reformation and persisted in the modern period. (shrink)