This article explores the relation between the concept of symmetry and its formalisms. The standard view among philosophers and physicists is that symmetry is completely formalized by mathematical groups. For some mathematicians however, the groupoid is a competing and more general formalism. An analysis of symmetry that justifies this extension has not been adequately spelled out. After a brief explication of how groups, equivalence, and symmetries classes are related, we show that, while it’s true in some instances that groups are (...) too restrictive, there are other instances for which the standard extension to groupoids is too un restrictive. The connection between groups and equivalence classes, when generalized to groupoids, suggests a middle ground between the two. *Received July 2007. †To contact the authors, please write to: Alexandre Guay, UFR Sciences et Techniques, Université de Bourgogne, 9 Avenue Alain Savary, 21078 Dijon Cedex, France; e‐mail: [email protected] ; or to Brian Hepburn, Department of Philosophy, University of British Columbia, 1866 Main Mall E370, Vancouver, BC, Canada V6T 1Z1; e‐mail: [email protected]. (shrink)

A key theme in the historiographical work of Machamer has been the ways that motion is made intelligible through explanatory means of natural motion and models of the simple machines such as the lever and pendulum. One way of spelling out the explanatory value of these strategies is through the concept of equilibrium. Natural motion and simple machines allow the simplification of complex problems in terms of self-evident, intelligible equilibrium conditions. This chapter connects the theme of equilibrium and natural motion (...) across Machamer’s work on mechanisms and mechanical explanation, on Aristotle, Galileo, Descartes and Newton, and on the pendulum and mental models. Just as equilibrium can be found within science, it also becomes a model of intelligibility for doing history and philosophy of science: a normative but objective representation of the important properties of science. (shrink)

Here is a phrase never uttered before: ”Euler’s philosophy of science.” Known as an extraordinary mathematician first, a mathematical physicist Known as an extraordinary mathematician first, a mathematical physicist second, but never really a physicist — not enough empirical cred — no one has considered whether Euler had a philosophy of science. Even his famed “Letters to a Princess” is described as a somewhat naive parroting of New- ton. But Euler is no Newtonian. His philosophy of science borrows from Leibniz, (...) a little from Descartes, but is best seen as continuous with the tradition of a Galilean interpre- tation of the world as consisting of interacting mechanisms, and the practice of letting the requirements of sound mechanical description and problem solving dictate metaphysics. (shrink)

I criticize Shimony's argument from the Transient Now (Shimony 1993) that the B-series view of time is inadequate but offer a reading of that argument that is more charitable than one offered and rejected by Eilstein (1996). Shimony's argument turns on putative phenomenological features of the Now (singularity and numerical identity) but transience only arises as a logical implication of those features. Transience is thus a second order phenomenon. If these two features are accurate then the B-series cannot provide a (...) complete account of the Now and Eilstein misses the role of Shimony's Phenomenological Principle (PP) in this regard. Holding a B-theoretic view then demands giving up the numerical identity of person-slices across time. (shrink)

Euler’s ‘On the force of percussion and its true measure’, published in 1746, shows that not only had the issue of vis viva not been settled, but that the concepts of inertia and even force were still very much up for grabs. This paper details Euler’s treatment of the vis viva problem. Within those details we find differences between his physics and that of Newton, in particular the rejection of empty space and reduction of all forces to the operation of (...) inertia through contact. One can further see how Euler’s philosophy of science embraced explanation through mechanisms and equilibrium conditions.Keywords: Leonhard Euler; Vis viva; Equlibrium; Mechanics; Eighteenth century. (shrink)

1. Overview and organizing themes 2. Historical Review: Aristotle to Mill 3. Logic of method and critical responses 3.1 Logical constructionism and Operationalism 3.2. H-D as a logic of confirmation 3.3. Popper and falsificationism 3.4 Meta-methodology and the end of method 4. Statistical methods for hypothesis testing 5. Method in Practice 5.1 Creative and exploratory practices 5.2 Computer methods and the ‘third way’ of doing science 6. Discourse on scientific method 6.1 “The scientific method” in science education and as seen (...) by scientists 6.2 Privileged methods and ‘gold standards’ 6.3 Scientific method in the court room 6.4 Deviating practices 7. Conclusion Bibliography Academic Tools Other Internet Resources Related Entries . (shrink)

An intuitive and appealing way to characterize problem solving is as the application of constraints which reduce the problem-solution space. Any advantage offered by interdisciplinary problem solving would then plausi- bly derive from the integration of constraints from the fields involved. We propose an account of interdisciplinary problem solving which treats the integration of constraints as an iterative process. Appealing to a general- ization of entity-activity dualism from mechanical explanation, we extend the accounts of Bechtel and of Craver to non-hierarchical, (...) non-life-science, interdisciplinary problem-solving. Integration of disciplines occurs at the level of fields and their explanatory frameworks. (shrink)

In support of a recent conjecture by Nielsen (1999), we prove that the phenomena of ‘incomparable entanglement’— whereby, neither member of a pair of pure entangled states can be transformed into the other via local operations and classical communication (LOCC)—is a generic feature when the states at issue live in an infinite-dimensional Hilbert space.  2002 Elsevier Science B.V. All rights reserved.

Scientific Change How do scientific theories, concepts and methods change over time? Answers to this question have historical parts and philosophical parts. There can be descriptive accounts of the recorded differences over time of particular theories, concepts, and methods—what might be called the shape of scientific change. Many stories of scientific change attempt to give […].

Tomasello argues in the target article that a sense of moral obligation emerges from the creation of a collaborative “we” motivating us to fulfill our cooperative duties. We suggest that “we” takes many forms, entailing different obligations, depending on the type of the relationship in question. We sketch a framework of such types, functions, and obligations to guide future research in our commentary.

Chalmers’s anti-materialist argument runs as follows.

An earlier version of this paper was presented at the 2011 IEEE International Symposium on Technology and Society at Saint Xavier University in Chicago, Illinois. We propose a cooperative approach by students in recording lecture activities such that the classroom becomes more visually accessible for everyone, especially for deaf, hard of hearing and low-vision students. Students utilize their personal camera-equipped smart phones to capture and share their views of a visually inaccessible classroom to students' devices. We show this approach virtually (...) retrofits a classroom to make it a more visually accessible learning environment. This approach can be used in meetings to get and share optimal views of the meeting for all participants. (shrink)

Although the body has been the focus of much contemporary cultural theory, the models that are typically applied neglect the most salient characteristics of embodied existence—movement, affect, and sensation—in favor of concepts derived from linguistic theory. In _Parables for the Virtual_ Brian Massumi views the body and media such as television, film, and the Internet, as cultural formations that operate on multiple registers of sensation beyond the reach of the reading techniques founded on the standard rhetorical and semiotic models. (...) Renewing and assessing William James’s radical empiricism and Henri Bergson’s philosophy of perception through the filter of the post-war French philosophy of Deleuze, Guattari, and Foucault, Massumi links a cultural logic of variation to questions of movement, affect, and sensation. If such concepts are as fundamental as signs and significations, he argues, then a new set of theoretical issues appear, and with them potential new paths for the wedding of scientific and cultural theory. Replacing the traditional opposition of literal and figural with new distinctions between stasis and motion and between actual and virtual, _Parables for the Virtual _tackles related theoretical issues by applying them to cultural mediums as diverse as architecture, body art, the digital art of Stelarc, and Ronald Reagan’s acting career. The result is an intriguing combination of cultural theory, science, and philosophy that asserts itself in a crystalline and multi-faceted argument. _Parables for the Virtual_ will interest students and scholars of continental and Anglo-American philosophy, cultural studies, cognitive science, electronic art, digital culture, and chaos theory, as well as those concerned with the “science wars” and the relation between the humanities and the sciences in general. (shrink)

Brian Skyrms, author of the successful Evolution of the Social Contract has written a sequel. The book is a study of ideas of cooperation and collective action. The point of departure is a prototypical story found in Rousseau's A Discourse on Inequality. Rousseau contrasts the pay-off of hunting hare where the risk of non-cooperation is small but the reward is equally small, against the pay-off of hunting the stag where maximum cooperation is required but where the reward is so (...) much greater. Thus, rational agents are pulled in one direction by considerations of risk and in another by considerations of mutual benefit. Written with Skyrms's characteristic clarity and verve, this intriguing book will be eagerly sought out by students and professionals in philosophy, political science, economics, sociology and evolutionary biology. (shrink)

Brian Hedden defends a radical view about the relationship between rationality, personal identity, and time. On the standard view, personal identity over time plays a central role in thinking about rationality, because there are rational norms for how a person's attitudes and actions at one time should fit with her attitudes and actions at other times. But these norms are problematic. They make what you rationally ought to believe or do depend on facts about your past that aren't part (...) of your current perspective on the world, and they make rationality depend on controversial, murky metaphysical facts about what binds different instantaneous snapshots into a single person extended in time. Hedden takes a different approach, treating the relationship between different time-slices of the same person as no different from the relationship between different people. On his account, the locus of rationality is the time-slice rather than the temporally extended agent. This impersonal, time-slice-centric approach to rationality yields a unified approach to the rationality of beliefs, preferences, and actions where what rationality demands of you is solely determined by your evidence, with no special weight given to your past beliefs or actions. (shrink)

"Brian Orend's The Morality of War promises to become the single most comprehensive and important book on just war for this generation. It moves far beyond the review of the standard just war categories to deal comprehensively with the new challenges of the conflict with terrorism. It thoughtfully reviews every major military conflict of the past few decades, mining them for implications of the evolving tradition of just war thinking. It concludes with a critical engagement with the major alternatives (...) to just war thinking: pacifism and 'realism.' It is, in short, the most comprehensive and thoughtful assessment of all aspects of just war since Michael Walzer's classic Just and Unjust Wars." - Martin L. Cook, United States Air Force Academy. (shrink)

In his insightful and challenging paper, Jonathan Schaffer argues against a distinction I make in The Ant Trap (Epstein 2015) and related articles. I argue that in addition to the widely discussed “grounding” relation, there is a different kind of metaphysical determination I name “anchoring.” Grounding and anchoring are distinct, and both need to be a part of full explanations of how facts are metaphysically determined. Schaffer argues instead that anchoring is a species of grounding. The crux of his argument (...) comes in the last sections of his paper, in his discussion of “exportation,” the relations strategy, and the definitions strategy. I am inclined to agree that Schaffer’s interesting strategies offer the best choices for the philosopher who wants to insist that anchoring is a species of grounding. But both, I will argue, are fatally flawed. I do not take the separation of anchors from grounds lightly, but find the evidence in its favor overwhelming. And once the distinction is made, I find anchoring to be a powerful practical tool in metaphysics. Philosophy and Phenomenological Research, Volume 99, Issue 3, Page 768-781, November 2019. (shrink)

(2009). Mellow Monday and furious Friday: The approach-related link between anger and time representation. Cognition & Emotion: Vol. 23, No. 6, pp. 1166-1180.

Effective altruism’s identity as both a philosophy and a social movement requires effective altruists to consider which philosophical commitments are essential, such that one must embrace them in order to count as an effective altruist, at least in part in the light of the goal of building a robust social movement capable of advancing its aims. The goal of building a social movement provides a strong reason for effective altruists to embrace an ecumenical set of core commitments. At the same (...) time, there are risks involved in adopting an ecumenical approach to social movement building. In this paper, I develop a view about how effective altruists should characterize the movement’s core philosophical commitments, in light of the challenges of social movement building. I suggest that John Rawls’s idea of an “overlapping consensus” provides a useful model for thinking about the philosophical core and broader structure of the movement. (shrink)

Current COVID-19 pandemic and previous SARS/MERS outbreaks have caused a series of major crises to global public health. We must integrate the large and exponentially growing amount of heterogeneous coronavirus data to better understand coronaviruses and associated disease mechanisms, in the interest of developing effective and safe vaccines and drugs. Ontologies have emerged to play an important role in standard knowledge and data representation, integration, sharing, and analysis. We have initiated the development of the community-based Coronavirus Infectious Disease Ontology (CIDO). (...) As an Open Biomedical Ontology (OBO) library ontology, CIDO is an open source and interoperable with other existing OBO ontologies. In this article, the general architecture and the design patterns of the CIDO are introduced, CIDO representation of coronaviruses, phenotypes, anti-coronavirus drugs and medical devices (e.g. ventilators) are illustrated, and an application of CIDO implemented to identify repurposable drug candidates for effective and safe COVID-19 treatment is presented. (shrink)

It is common for philosophers to reject otherwise plausible moral theories on the ground that they are objectionably demanding, and to endorse “Moderate” alternatives. I argue that while support can be found within the method of reflective equilibrium for Moderate moral principles of the kind that are often advocated, it is much more difficult than Moderates have supposed to provide support for the view that morality’s demands in circumstances like ours are also Moderate. Once we draw a clear distinction between (...) Moderate accounts of the content of moral principles, and Moderate accounts of morality’s demands in circumstances like ours, we can see that defenses of Moderate views that include both of these components are subject to both methodological and substantive objections. I consider arguments for Moderate views that have been made by Samuel Scheffler and Richard Miller, and argue that both are methodologically problematic because they rely on appeals to intuitions that we have strong grounds to think are unreliable. I conclude that we must take seriously the possibility that Moderate principles, applied to well off people in circumstances like ours, imply demands that are much more extensive than Moderates typically accept. (shrink)

Some philosophers claim that emotions are, at best, hindrances to the discovery of evaluative truths, while others omit them entirely from their epistemology of value. I argue, however, that this is a mistake. Drawing an evaluative parallel with Frank Jackson’s Mary case, I show there is a distinctive way in which emotions epistemically enhance evaluative judgment. This is, in fact, a conclusion philosophers of emotion have been eager to endorse. However, after considering several influential proposals—such as the view that emotions (...) generate evaluative concepts, or the view that emotions justify evaluative beliefs on the model of perception—I conclude that the most promising contender is the notion that emotional experience acquaints us with evaluative properties. (shrink)

Color coded terror alerts, invasion, drone war, rampant surveillance: all manifestations of the type of new power Brian Massumi theorizes in _Ontopower_. Through an in-depth examination of the War on Terror and the culture of crisis, Massumi identifies the emergence of preemption, which he characterizes as the operative logic of our time. Security threats, regardless of the existence of credible intelligence, are now felt into reality. Whereas nations once waited for a clear and present danger to emerge before using (...) force, a threat's felt reality now demands launching a preemptive strike. Power refocuses on what _may_ emerge, as that potential presents itself to feeling. This affective logic of potential washes back from the war front to become the dominant mode of power on the home front as well. This is ontopower—the mode of power embodying the logic of preemption across the full spectrum of force, from the “hard” to the "soft". With _Ontopower_, Massumi provides an original theory of power that explains not only current practices of war but the culture of insecurity permeating our contemporary neoliberal condition. (shrink)

In this article, I aim to clarify some key issues in the ongoing debate about the relationship between Rawlsian political philosophy and business ethics. First, I discuss precisely what we ought to be asking when we consider whether corporations are part of the “basic structure of society.” I suggest that the relevant questions have been mischaracterized in much of the existing debate, and that some key distinctions have been overlooked. I then argue that although Rawlsian theory’s potential implications for business (...) ethics are more extensive than some have suggested, the nature of the concern that we ought to have about the effects of corporate behavior on individuals’ economic and social conditions should lead us to reject the view that corporations are bound by principles of justice only if, and insofar as, they are part of the basic structure. (shrink)

The current COVID-19 pandemic and the previous SARS/MERS outbreaks of 2003 and 2012 have resulted in a series of major global public health crises. We argue that in the interest of developing effective and safe vaccines and drugs and to better understand coronaviruses and associated disease mechenisms it is necessary to integrate the large and exponentially growing body of heterogeneous coronavirus data. Ontologies play an important role in standard-based knowledge and data representation, integration, sharing, and analysis. Accordingly, we initiated the (...) development of the community-based Coronavirus Infectious Disease Ontology in early 2020. -/- As an Open Biomedical Ontology (OBO) library ontology, CIDO is open source and interoperable with other existing OBO ontologies. CIDO is aligned with the Basic Formal Ontology and Viral Infectious Disease Ontology. CIDO has imported terms from over 30 OBO ontologies. For example, CIDO imports all SARS-CoV-2 protein terms from the Protein Ontology, COVID-19-related phenotype terms from the Human Phenotype Ontology, and over 100 COVID-19 terms for vaccines (both authorized and in clinical trial) from the Vaccine Ontology. CIDO systematically represents variants of SARS-CoV-2 viruses and over 300 amino acid substitutions therein, along with over 300 diagnostic kits and methods. CIDO also describes hundreds of host-coronavirus protein-protein interactions (PPIs) and the drugs that target proteins in these PPIs. CIDO has been used to model COVID-19 related phenomena in areas such as epidemiology. The scope of CIDO was evaluated by visual analysis supported by a summarization network method. CIDO has been used in various applications such as term standardization, inference, natural language processing (NLP) and clinical data integration. We have applied the amino acid variant knowledge present in CIDO to analyze differences between SARS-CoV-2 Delta and Omicron variants. CIDO's integrative host-coronavirus PPIs and drug-target knowledge has also been used to support drug repurposing for COVID-19 treatment. -/- CIDO represents entities and relations in the domain of coronavirus diseases with a special focus on COVID-19. It supports shared knowledge representation, data and metadata standardization and integration, and has been used in a range of applications. (shrink)

It has been argued in some recent work that there are many cases in which individuals are subject toconditional obligationsto give to more effective rather than less effective charities, despite not being unconditionally obligated to give. These conditional obligations, it has been suggested, can allow effective altruists (EAs) to make the central claims about the ethics of charitable giving that characterize the movement without taking any particular position on morality's demandingness. I argue that the range of cases involving charitable giving (...) in which individuals are subject to conditional effectiveness obligations is in fact quite narrow. Because of this, I claim, EAs must endorse the view that well off people have at least fairly demanding unconditional obligations. (shrink)

The figure of today’s threat is the suddenly irrupting, locally self-organizing, systemically self-amplifying threat of large-scale disruption. This form of threat, fed by instability and metastability, is not only indiscriminate, it is also indiscrimin able; it is indistinguishable from the general environment. The figure of the environment shifts: from the harmony of a natural balance to the normality of a generalized crisis environment so encompassing in its endemic threat-form as to connect, across the spectrum, the polar extremes of war and (...) the weather. Michel Foucault characterizes the dominant contemporary regime of power, coincident with the rise of neoliberalism, as ‘environmental’: a governmentality which will act on the environment and systematically modify its variables. Its actions, he emphasizes, are not standardizing since the shift in the figure of the environment has moved it out of reach of normalization. Given the indiscriminateness of the environment’s autonomous activity, environmentality must work through the ‘regulation of effects’ rather than of causes. It must remain operationally ‘open to unknowns’ and catch nonlinear, transversal phenomena before they amplify the stirrings to actual crisis proportions. What systematicity is this? And: does power’s becoming-environmental mean that, politically, we are dealing with natural subjects? Where Foucault’s question ends is where, today, we must begin, in light of how the recomposition of power whose dawning he glimpsed in 1979 has since played out. In the context of Foucault’s theories of power, the question amounts to asking: is this still ‘biopolitics’? (shrink)

Events are always passing; to experience an event is to experience the passing. But how do we perceive an experience that encompasses the just-was and the is-about-to-be as much as what is actually present? In _Semblance and Event_, Brian Massumi, drawing on the work of William James, Alfred North Whitehead, Gilles Deleuze, and others, develops the concept of "semblance" as a way to approach this question. It is, he argues, a question of abstraction, not as the opposite of the (...) concrete but as a dimension of it: "lived abstraction." A semblance is a lived abstraction. Massumi uses the category of the semblance to investigate practices of art that are relational and event-oriented -- variously known as interactive art, ephemeral art, performance art, art intervention -- which he refers to collectively as the "occurrent arts." Each art practice invents its own kinds of relational events of lived abstraction, to produce a signature species of semblance. The artwork's relational engagement, Massumi continues, gives it a political valence just as necessary and immediate as the aesthetic dimension. (shrink)

Teleosemantics explains mental representation in terms of etiological history: a mental state’s representational contents are the result of natural selection, or some other selection process. Critics have argued that the “swampman” thought experiment poses a counterexample to teleosemantics. In several recent papers, Papineau has argued that a merely possible swampman cannot serve as a counterexample to teleosemantics, but has acknowledged that actual swampmen would pose a problem for teleosemantics. In this paper, I argue that there are real-world cases of swampman-like (...) representation, in the form of functional tetrachromacy. People with functional tetrachromacy are born with four types of cones in each eye, rather than the usual three, and as a result can represent a wider variety of colors than the average person. I argue that the functional tetrachromat’s additional color representations are not the result of a selection process. Functional tetrachromacy is therefore a real-world case of mental representation without an etiological history, and therefore poses a genuine counterexample to teleosemantics. (shrink)

Neuroscience was the basic science behind Freud's psychoanalytic theory and technique. He worked as a neurologist for 20 years before being aware that a new approach to understand complex diseases, namely the hysterias, was needed. Solms coined the term neuropsychoanalysis to affirm that neuroscience still belongs in psychoanalysis. The neuropsychoanalytic field has continued Freud's original ideas as stated in 1895. Developments in psychoanalysis that have been created or revised by the neuropsychoanalysis movement include pain/relatedness/opioids, drive, structural model, dreams, cathexis, and (...) dynamic unconscious. Neuroscience has contributed to the development of new psychoanalytic theory, such as Bazan's ( 2011 ) description of anxiety driven by unconscious intentions or “phantoms.” Results of adopting the “dual aspect monism” approach of idiographic psychoanalytic clinical observation combined with nomothetic investigation of related human phenomena include clarification and revision of theory, restoration of the scientific base of psychoanalysis, and improvement of clinical treatments. By imbricating psychoanalytic thinking with neuroscience, psychoanalysts are also positioned to make contributions to neuroscience research. Freud's original Project for a Scientific Psychology/Psychology for Neurologists can be carried forward in a way that moves psychoanalysis into the twenty-first century as a core contemporary science (Kandel, 1999 ). Neuroscience as the basic science of psychoanalysis both improves the field, and enhances its scientific and cultural status. (shrink)

Ontologies, as the term is used in informatics, are structured vocabularies comprised of human- and computer-interpretable terms and relations that represent entities and relationships. Within informatics fields, ontologies play an important role in knowledge and data standardization, representation, integra- tion, sharing and analysis. They have also become a foundation of artificial intelligence (AI) research. In what follows, we outline the Coronavirus Infectious Disease Ontology (CIDO), which covers multiple areas in the domain of coronavirus diseases, including etiology, transmission, epidemiology, pathogenesis, diagnosis, (...) prevention, and treatment. We emphasize CIDO development relevant to COVID-19. (shrink)

This article focuses on issues relating to legal normativity, emphasizing the way these matters have been elaborated in the works of Kelsen and Hart and later commentators on their theories. First, in Section 2, the author offers a view regarding the nature of law and legal normativity focusing on Kelsen's work (at least one reasonable reading of it). The argument is that the Basic Norm is presupposed when a citizen chooses to read the actions of legal officials in a normative (...) way. In this Kelsenian approach, all normative systems are structurally and logically similar, but each normative system is independent of every other system – thus, law is, in this sense, conceptually separate from morality. Second, in Section 3, the author turns to Hart's theory, analyzing the extent to which his approach views legal normativity as sui generis. This approach raises questions regarding what has become a consensus view in contemporary jurisprudence: that law makes moral claims. The author shows how a more deflationary (and less morally-flavored) understanding of the nature of law is tenable, and may, in fact, work better than current conventional (morality-focused) understandings. (shrink)