Aldo Leopold accorded great significance to the images he used to describe both the land and humankind’s relation to it. Focusing on three key images of Leopold’s “ecological imaginary”—the balance, the pyramid, and the round river—this article argues that the most profound of these is the round river. Contrasting this image with James Lovelock’s portrayal of the earth as Gaia, it further argues that Leopold’s round river can be interpreted as a contemporary, ecological reworking of the (...) primordial, Homeric experience of Being, according to which the foundation of the world is a round river, Oceanus. (shrink)

It is clear that environmentalist are failing in their efforts to avert a global ecological catastrophe. It is argued here that Aldo Leopold had provided the foundations for an effective environmental movement, but to develop his land ethic, it is necessary first to interpret and advance it by seeing it as a form of communitarianism, and link it to communitarian ethical and political philosophy. This synthesis can then be further developed by incorporating advanced ideas in ecology and human (...) ecology. Overcoming the division between the sciences and humanities and granting a place to narratives as a highly developed form of eco-semiosis, these provide the foundation for a new grand narrative committed to creating an ecological civilization, a civilization organized to augment the life of ecosystems, including human ecosystems, by augmenting the conditions for its members to flourish and develop their full potential to augment life. (shrink)

The 70th anniversary of Aldo Leopold’s A Sand County Almanac (1949) approaches. For philosophers—environmental ethicists in particular—this text has been highly influential, especially the ‘Land Ethic’ essay contained therein. Given philosophers’ acumen for identifying and critiquing arguments, one might reasonably think a firm grasp of Leopold’s ideas to have emerged from such attention. I argue that this is not the case. Specifically, Leopold’s main interpreter and systematiser, philosopher J. Baird Callicott, has shoehorned Aldo Leopold’s (...) ideas into differing monistic moral theories that ill-serve a proper understanding. Against Callicott, my paper argues that Aldo Leopold embraces a robust moral pluralism, one that goes beyond mere pragmatics, and he does so while seeking a consistency maximisation of values. A new, improved understanding of Leopold’s ideas thus emerges. (shrink)

Through a close reading of the works of John Dewey and Aldo Leopold, I demonstrate that it is possible to reframe debates about the environment in language better suited to robust and inclusive public discourse. There are at least two ways of framing the instrumental relationship between human and environmental health: (i) in terms of control and (ii) in terms of restraint. On the one hand, means of control are associated with an anthropocentric view of environmental value: the (...) environment has worth only insofar as it provides resources for human benefit. On the other hand, means of restraint reflect greater concern for environmental health, sustainable living, non-anthropocentric (whether eco- or bio-centric) environmental value and lifestyles in harmony with nature, similar to the rhythmic relationship between human and environment captured in the writings of Henry David Thoreau and John Muir. While John Dewey defends an instrumentalism of control, Aldo Leopold supports an opposing instrumentalism of restraint. At first blush, these two concepts appear to form a dualism, as incompatible dyads in a permanently bifurcated relationship. However, the matter is not quite so simple--or so I argue. Dewey and Leopold's concepts of environmental instrumentalism prove more compatible than this simple control/restraint dichotomy suggests. Nevertheless, it is helpful to frame environmental issues in terms of these two competing instrumentalism. To test the distinction's usefulness, I examine the wilderness debate, the global warming controversy and a more local matter, attempting to frame these environmental discourses in terms of an instrumentalism of control and an instrumentalism of restraint. (shrink)

Aldo Leopold’s A Sand County Almanac emphasizes values of receptivity and perceptivity that appear to be mutually reinforcing, critical to an ecological conscience, and cultivatable through concrete and embodied experience. His priorities bear striking similarities to elements of the ethics of care elaborated by feminist philosophers, especially Nel Noddings, who notably recommended receptivity, direct and personal experience, and even shared Leopold’s attentiveness to joy and play as sources of moral motivation. These commonalities are so fundamental that ecofeminists (...) can and should see Leopold as a philosophical ally. The three ecofeminist scholars who have devoted the most concerted attention to Leopold’s work argue that his Land Ethic is not, and does not provide a basis for, an ecofeminist ethic. I dispute the main criticisms of these scholars, and conclude that ecofeminists should attend more often to Leopold’s work, which extends possibilities for excellent praxis. (shrink)

I argue that a reasonable understanding of Leopold’s ‘Land Ethic’ is one that identifies possession of health as being a sufficient condition for moral consideration. With this, Leopold extends morality not only to biotic wholes, but to individual organisms, as both can have their health undermined. My argument centers on explaining why Leopold thinks it reasonable to analogize ecosystems both to an organism and to a community: both have a health. My conclusions undermine J. Baird Callicott’s rhetorical (...) dismissal of the organism analogy’s importance, a dismissal crucially serving his thesis that Leopoldians should hold community membership necessary for moral standing. (shrink)

Environmental justice refers to many things: a global activist movement, local groups that struggle to redress the inequitable distribution of environmental goods (and bads), especially as they affect minority communities, as well as a vast body of interdisciplinary scholarship documenting and motivating these movements. In the past three decades, scholarly debates over what environmental justice requires have been dominated by a discourse of rights.

The Origin and Development of Environmental Philosophy in the US according to John Muir, Aldo Leopold and J. Baird Callicot. The publication refers to environmental philosophy, which is also called ecological philosophy or ecophilosophy. It shows in what way philosophical reflection on the environment has been shaped in the American tradition. In this context, the views of the thinkers listed below have been presented, analysed and evaluated. John Muir, an astute observer of wild nature, has been presented as (...) an enthusiast and a prophet persuading a return to nature. Muir was a forester under the strong influence of the representatives of transcendentalism. As an activist, he founded national parks that served to preserve virgin areas, and as a writer he popularized the concept of the preservation of wild areas. For many representatives of ecophilosophy, the views of Aldo Leopold, as expressed in his well-known work, A Sand County Almanac, constituted a new pattern of thinking about wild nature. The book itself is almost generally regarded as a bible of environmental philosophy. Leopold, a forester interested in philosophy, created the fundamentals of holistic environmental philosophy, but the theory he developed is not without defects, to which some attention has been paid in this paper. The theory of J. Baird Callicot presents the attitude of an academic philosopher with regard to wild nature. His attitude is fully professional as regards the applied method, thus allowing the author to avoid committing a naturalistic fallacy. Callicot reinterprets the issues of facts and values, because he thinks that the discoveries of the dynamically developing ecology make possible the reformulation of the traditional approach to such issues by utilising a spirit of acceptance, and lead to a shift from is to ought to be. (shrink)

Modern rationalism transformed the modern homeland to a discursive space and time by means of institutes governing the modern society in all its walks. Based on the Newtonian and Kantian conception of space and time the discursive field is just a scene wherein any human individual adopts stewardship to create progress by reducing landscape and non-human life to auxiliary items for human’s benefit. In contrast, Aldo Leopold considered humans, non human life and the landscape as mutually influencing participants (...) and enlarged ethical care to all living participants and the landscape, called ´the land´. Integrity and autonomy of the homeland are the central topics of Leopold’s land ethics. Baird Callicott suggested to complete it with new metaphysical conceptions of space and time. -/- We formulated a metaphysical background for Leopold’s land ethics by phenomenology of space and time based on the Leibnizian conception of space-time. The latter is constructed by particular places and events called ´ecotopois´ embracing all human participants, locals and foreigners in a varying symbolic temporal and spatial field of dynamic process of identification and self consciousness. Adopting Warwick Fox´ transpersonal identification idea non-human life and landscape enriches these processes. Finally, it is not a matter of conquering the land, it is matter of making a community. -/- Though landscape and participants are particular, integrity and autonomy of the homeland claim the universal status of the land. Adopting Gadamer hermeneutical way of understanding, we reject mutual and equally understanding. Only acceptance of mutual prejudice makes room for asymmetric praxis between locals and foreigners as well as between humans and non-humans. What is more, Gadamer´s hermeneutics makes an ontological status of the foreigner possible and recognizes the interest of homeland’s particularity. This universal status is guaranteed as a priori space-time that links subject’s tradition and that of the land to actual contact with the foreigner. Transpersonal identification is a consequence of converging hermeneutical understanding of foreigner’s particularity and that of the landscape. Ethics of the land evolves from the ethical status of any foreigner in the own homeland. -/- . (shrink)

GREGORY McELWAIN | : This paper explores the intersection of animal and environmental ethics through the thought of Mary Midgley. Midgley’s work offers a shift away from liberal individualist animal ethics toward a relational value system involving interdependence, care, sympathy, and other components of morality that were often overlooked or marginalized in hyperrationalist ethics, though which are now more widely recognized. This is most exemplified in her concept of “the mixed community,” which gained special attention in J. Baird Callicott’s effort (...) to create a “unified environmental ethics.” In this, Callicott saw the potential in Midgley’s thought for bringing animal and environmental ethics “back together again.” However, this paper argues that he oversimplified and misapplied her complex concept. This is primarily due to his attempt to harmonize her approach with a rigid dichotomy between domestic and wild animals—as well as one between individuals and collectives—in his conception of the land ethic in the tradition of Aldo Leopold. Throughout, this paper also highlights Midgley’s value as an early contributor to the convergence of animal and environmental ethics. | : Cet article explore l’intersection entre l’éthique animale et l’éthique environnementale par le biais de la pensée de Mary Midgley. Le travail de Midgley prend ses distances d’une éthique animale libérale individualiste pour se rapprocher d’un système de valeurs relationnel qui implique l’interdépendance, le soin, la sympathie, et d’autres éléments de la morale qui ont souvent été négligés ou marginalisés dans le contexte de l’éthique hyperrationnaliste, bien qu’actuellement plus largement reconnus. Le meilleur exemple de cela se retrouve dans son concept de « la communauté mixte », lequel a bénéficié d’une attention particulière chez J. Baird Callicot et son effort pour créer une « éthique environnementale unifiée ». En cela, Callicot a vu le potentiel de la pensée de Midgley’s pour une « réunification » de l’éthique animale et l’éthique environnementale. Or, cet article soutient qu’il a simplifié et appliqué à tort le concept complexe de Midgley, en raison de sa tentative de concilier l’approche de cette dernière avec une stricte dichotomie entre animaux sauvages et domestiques – en plus d’une autre entre individus et collectivités – suivant sa conception de l’éthique de la terre dans la tradition d’Aldo Leopold. Tout au long du texte, cet article met en relief l’importance de Midgley comme l’une des premiers théoriciens à avoir contribué à la convergence de l’éthique animale et de l’éthique environnementale. (shrink)

Environmental historian Kevin Armitage’s new book offers welcome relief to readers grown weary of anthropocentrism versus nonanthropecentrism debates and Muir-Pinchot-Leopold “third way” arguments. It will also find a receptive audience among those who have maintained all along that education is the key to addressing our environmental woes. In the United States, environmental education has a vibrant history. During the late nineteenth and early twentieth century, a critical mass of policy makers, educators, scientists, and philosophers shared the belief that a (...) curriculum based on the careful observation and study of nature should be taught in primary and secondary school classrooms. The “nature study movement,” as it was called, advanced an ambitious agenda for education reform based on a simple theory: children who develop a deep and abiding interest in the natural world mature into environmentally conscious adults and good citizens. Organized thematically, Armitage’s book lays out the meaning of nature study as well as its scientific and sentimental interpretations (introduction and chap. 1), the influence of progressive education on nature study (chap. 2), the connection between recapitulation theory and nature study (chap. 3), nature study and bird conservation (chap. 4), school gardening as an extension of nature study (chap. 5), the growth of nature photography in tandem with nature study (chap. 6), and finally nature study’s role in promoting agricultural reform (chap. 7). In case the significance of this progressive-era movement is still in doubt, the movement’s legacy can still be felt, Armitage contends, in the ideas of perhaps two of the most influential environmental thinkers of the past century: Aldo Leopold and Rachel Carson (conclusion). (shrink)

Since the early Medieval Time people contested theological legitimation and rational discursive discours on authority as well as retreated to refuges to escape from any secular or ecclesiastical authority. Modern attempts formulated rational legitimation of authority in several ways: pragmatic authority by Monteigne, Bodin and Hobbes, or the contract authority of Locke and Rousseou. However, Enlightened Anarchism, first formulated in 1793 by the English philosopher William Godwin fulminated against all rational restrictions of human freedom and self-determination. However, we do not (...) analyze anarchism by the ‘what’ and the ‘why’, but by looking for the best actual approach of Anarchist’s ‘Promised Land’. Furthermore, we follow the footsteps of Thoreau’s Walden Pond experiment considered as a place of salvation and prototype of 19th century romantic’s extreme individualism towards Leopold’s ethics of the land. Indeed, Thoreau’s and later Muir’s concepts of refuges are tightly connected to territorial and temporal bio-regional constraints and imply an internally organized public area based on mutualism and Hannah Arendt’s agape. From these ideas of refuges, Aldo Leopold formulated his Land-ethics that claimed integrity and autonomy of the ‘Land’. His foundation is a prototype of the eco-centric free space version of eco-anarchism as formulated by Bookchin. In order to formulate a philosophical foundation of eco-anarchism we reject Newtonian homogeneous space-temporal conception, preceding the whole Modern discours about authority and state. On the contrary, we adopt the pluralistic Leibnizian space-time from which thinking-humans do not dissociate themselves, but participate as part of the rational infrastructure of eco-refuges. In eco-refuges, citizen belong to the civil society that stays in equilibrium with the landscape and all forms of biological life. Space is the boundary condition of human activity and determines how borders, environmental organization and institutes are sustained. Space has its proper essence of sustainability, unity and integrity. The individual feelings of security are embedded in a timelike tradition and evolution of the free space, while individual particular conceptions of space and time integrate into the social processes of identification with the refuge. Therefore, the creation of eco-refuges transforms the actual world of national authorities into a world of anarchistic democratic eco-regional homelands. (shrink)

Conservation has often been conducted with the implicit internalization of Aldo Leopold’s claim: “A thing is right when it tends to preserve the integrity, stability and beauty of the biotic community.” This position has been found to be problematic as ecological science has not vindicated the ecological community as an entity which can be stable or coherent. Ecological communities do not form natural kinds, and this has forced ecological scientists to explain ecology in a different manner. Individualist approaches (...) to ecological systems have gained prominence. Individualists claim that ecological systems are better explained at the population level rather than as whole communities. My thesis looks at the implications of the current state of ecological science on conservation biology and emphasizes the importance of biodiversity as assessed at the population level. I defend the position that biodiversity should represent taxonomy and be quantified in reference to phylogenetic structure. This is a defence of biodiversity realism, which conceives of biodiversity as a natural quantity in the world which is measurable, valuable to prudent agents, and causally salient to ecological systems. To address how biodiversity at the population level relates to larger ecological systems I create a methodology designed to identify the relevant ecological system which biodiversity maintains and is maintained by biodiversity. This is done through the context dependent modelling of causal networks indexed to populations. My causal modelling methodology is then utilized to explicate ecological functions. These chapters together provide a framework for conservation science, which can then be applied to novel problems. The final section of the thesis utilises this framework to address whether de-extinction is a worthwhile conservation technique. (shrink)

Environmental ethics has mostly been practiced separately from philosophy of technology, with few exceptions. However, forward thinking suggests that environmental ethics must become more interdisciplinary when we consider that almost everything affects the environment. Most notably,technology has had a huge impact on the natural realm. In the following discussion, the notions of synthesising philosophy of technology and environmental ethics are explored with a focus on research, development, and policy.

The aim of this article is to introduce the work of Leopold Blaustein — philosopher and psychologist, who studied under Kazimierz Twardowski in Lvov and under Husserl in Freiburg im Breisgau. In his short academic career Blaustein developed an original philosophy that drew upon both phenomenology and Twardowski’s analytical approach. One of his main publications concerns Husserl’s early theory of intentional act and object, introduced in Logische Untersuchungen. In the first part of the article I briefly present Blaustein’s biography (...) and some general features of his philosophy. The second part provides an overview of Blaustein’s dissertation concerning Husserl’s early phenomenology. In the third and final part I summarize Blaustein’s research, including the critical remarks of Roman Ingarden. (shrink)

If the laws of nature are as the Humean believes, it is an unexplained cosmic coincidence that the actual Humean mosaic is as extremely regular as it is. This is a strong and well-known objection to the Humean account of laws. Yet, as reasonable as this objection may seem, it is nowadays sometimes dismissed. The reason: its unjustified implicit assignment of equiprobability to each possible Humean mosaic; that is, its assumption of the principle of indifference, which has been attacked on (...) many grounds ever since it was first proposed. In place of equiprobability, recent formal models represent the doxastic state of total ignorance as suspension of judgment. In this paper I revisit the cosmic coincidence objection to Humean laws by assessing which doxastic state we should endorse. By focusing on specific features of our scenario I conclude that suspending judgment results in an unnecessarily weak doxastic state. First, I point out that recent literature in epistemology has provided independent justifications of the principle of indifference. Second, given that the argument is framed within a Humean metaphysics, it turns out that we are warranted to appeal to these justifications and assign a uniform and additive credence distribution among Humean mosaics. This leads us to conclude that, contrary to widespread opinion, we should not dismiss the cosmic coincidence objection to the Humean account of laws. (shrink)

Can stable regularities be explained without appealing to governing laws or any other modal notion? In this paper, I consider what I will call a ‘Humean system’—a generic dynamical system without guiding laws—and assess whether it could display stable regularities. First, I present what can be interpreted as an account of the rise of stable regularities, following from Strevens [2003], which has been applied to explain the patterns of complex systems (such as those from meteorology and statistical mechanics). Second, since (...) this account presupposes that the underlying dynamics displays deterministic chaos, I assess whether it can be adapted to cases where the underlying dynamics is not chaotic but truly random—that is, cases where there is no dynamics guiding the time evolution of the system. If this is so, the resulting stable, apparently non-accidental regularities are the fruit of what can be called statistical necessity rather than of a primitive physical necessity. (shrink)

Certain results, most famously in classical statistical mechanics and complex systems, but also in quantum mechanics and high-energy physics, yield a coarse-grained stable statistical pattern in the long run. The explanation of these results shares a common structure: the results hold for a 'typical' dynamics, that is, for most of the underlying dynamics. In this paper I argue that the structure of the explanation of these results might shed some light --a different light-- on philosophical debates on the laws of (...) nature. In the explanation of such patterns, the specific form of the underlying dynamics is almost irrelevant. The conditions required, given a free state-space evolution, suffice to account for the coarse-grained lawful behaviour. An analysis of such conditions might thus provide a different account of how regular behaviour can occur. This paper focuses on drawing attention to this type of explanation, outlining it in the diverse areas of physics in which it appears, and discussing its limitations and significance in the tractable setting of classical statistical mechanics. (shrink)

It is not uncommon in the history of science and philosophy to encounter crucial experiments or crucial objections the truth-value of which we are ignorant, that is, about which we suspend judgment. Should we ignore such objections? Contrary to widespread practice, I show that in and only in some circumstances they should not be ignored, for the epistemically rational doxastic attitude is to suspend judgment also about the hypothesis that the objection targets. In other words, suspension of judgment "propagates" from (...) the crucial objection to the hypothesis. In this paper I study under which conditions this phenomenon occurs, and discuss its significance for the topics of skepticism and scientific realism. (shrink)

This doctoral dissertation investigates the notion of physical necessity. Specifically, it studies whether it is possible to account for non-accidental regularities without the standard assumption of a pre-existent set of governing laws. Thus, it takes side with the so called deflationist accounts of laws of nature, like the humean or the antirealist. The specific aim is to complement such accounts by providing a missing explanation of the appearance of physical necessity. In order to provide an explanation, I recur to fields (...) that have not been appealed to so far in discussions about the metaphysics of laws. Namely, I recur to complex systems’ theory, and to the foundations of statistical mechanics. The explanation proposed is inspired by how complex systems’ theory has elucidated the way patterns emerge, and by the probabilistic explanations of the 2nd law of thermodynamics. More specifically, this thesis studies how some constraints that make no direct reference to the dynamics can be a sufficient condition for obtaining in the long run, with high probability, stable regular behavior. I hope to show how certain metaphysical accounts of laws might benefit from the insights achieved in these other fields. According to the proposal studied in this thesis, some regularities are not accidental not in virtue of an underlying physical necessity. The non-accidental character of certain regular behavior is only due to its overwhelming stability. Thus, from this point of view the goal becomes to explain the stability of temporal patterns without assuming a set of pre-existent guiding laws. It is argued that the stability can be the result of a process of convergence to simpler and stable regularities from a more complex lower level. According to this project, if successful, there would be no need to postulate a (mysterious) intermediate category between logical necessity and pure contingency. Similarly, there would be no need to postulate a (mysterious) set of pre-existent governing laws. Part I of the thesis motivates part II, mostly by arguing why further explanation of the notions of physical necessity and governing laws should be welcomed (chapter 1), and by studying the plausibility of a lawless fundamental level (chapters 2 and 3). Given so, part II develops the explanation of formation of simpler and stable behavior from a more complex underlying level. (shrink)

The common account of the analog vs digital distinction is based on features of physical systems, being related to the usage of continuous vs discrete supports respectively. It is proposed here to alternatively characterize the concepts of analog and digital as related to coding systems, of which a formal definition is given, by suggesting that the distinction refers to the strategy adopted to define the coding function: extensional in digital systems, isomorphic intensional in analog systems. This thesis is supported by (...) examples, in particular of analog systems exploiting discrete supports, and is discussed to explain why digital coding is currently so widespread in technological and social practice. (shrink)

How can a metaphysics of abstract entities be built upon a metaphysics of time? In this paper, I address the question of how to accommodate abstract entities in a presentist world. I consider both the traditional metaontological approach of unrestricted fundamental quantification and then ontological pluralism. I argue that under the former we need to impose two constraints in the characterization of presentism in order to avoid undesired commitments to abstract entities: we have to characterize presentism as a thesis only (...) about the concrete, and we also need to avoid the widely held distinction between tensed and tenseless senses of existence. Under ontological pluralism, instead, I argue that we can naturally accommodate any view of abstract objects in a presentist world. (shrink)

Il concetto di relazione è colto come concetto antinomico e il valore è la coscienza di questa antinomia.

This paper aims to support the claim that analytic metaphysics should be more cautious regarding the constraints that truthmaking considerations impose on metaphysical theories. To this end, I reply to Briggs and Forbes (2017), whoargue that certain truthmaking commitments are incurred by a Humean metaphysics and by the Growing-Block theory. First, I argue that Humean Supervenience does not need to endorse a standard version of truthmaker maximalism. This undermines Briggs and Forbes’s conclusion that Humean Supervenience and the Growing-Block theory are (...) incompatible. Second, I argue that the Growing-Block theory does not commit us to any weaker version of truthmaker maximalism, which also undermines Briggs and Forbes’s conclusion. Finally, I point out other reasons to think that any version of truthmaker maximalism is disputable, undermining a fortiori Briggs and Forbes’s conclusion and supporting the moral that metaphysical theories—or at least Humean Supervenience, the Growing-Block theory, and presentism—are little constrained by truthmaking commitments. (shrink)

En esta entrada se mencionan las principales cuestiones en los fundamentos de la mecánica estadı́stica y la termodinámica, y las cuestiones filosóficas en las que repercuten estas áreas de la fı́sica. Al final se añaden lecturas recomendadas, enfatizando las traducidas al español.

Much recent philosophy of physics has investigated the process of symmetry breaking. Here, I critically assess the alleged symmetry restoration at the fundamental scale. I draw attention to the contingency that gauge symmetries exhibit, that is, the fact that they have been chosen from an infinite space of possibilities. I appeal to this feature of group theory to argue that any metaphysical account of fundamental laws that expects symmetry restoration up to the fundamental level is not fully satisfactory. This is (...) a symmetry argument in line with Curie’s first principle. Further, I argue that this same feature of group theory helps to explain the ‘unreasonable’ effectiveness of mathematics in physics, and that it reduces the philosophical significance that has been attributed to the objectivity of gauge symmetries. (shrink)

A brief presentation of life, activity and publications of an Italian philosopher, the founder with Guido Calogero of the Liberal-Socialist movement under the Fascist regime and the theorist of non-violence and omnicracy as the key ideas for a new left, beyond reformism and third-International state-socialism.

The timeless solution to the problem of divine foreknowledge and human freedom has many advantages. Still, the relationship between a timeless God and temporal beings is problematic in a number of ways. In this paper, we focus on the specific problems the timeless view has to deal with when certain assumptions on the metaphysics of time are taken on board. It is shown that on static conception of time God’s omniscience is easily accounted for, but human freedom is threatened, while (...) a dynamic conception has no problems with human freedom, but, on this view, some truths seem not to be knowable by a timeless God. We propose Fragmentalism as a metaphysics of time in which the divine timeless knowledge of temporal events and human freedom can be reconciled. -/- . (shrink)

Multialgebras have been much studied in mathematics and in computer science. In 2016 Carnielli and Coniglio introduced a class of multialgebras called swap structures, as a semantic framework for dealing with several Logics of Formal Inconsistency that cannot be semantically characterized by a single finite matrix. In particular, these LFIs are not algebraizable by the standard tools of abstract algebraic logic. In this paper, the first steps towards a theory of non-deterministic algebraization of logics by swap structures are given. Specifically, (...) a formal study of swap structures for LFIs is developed, by adapting concepts of universal algebra to multialgebras in a suitable way. A decomposition theorem similar to Birkhoff’s representation theorem is obtained for each class of swap structures. Moreover, when applied to the 3-valued algebraizable logics J3 and Ciore, their classes of algebraic models are retrieved, and the swap structures semantics become twist structures semantics. This fact, together with the existence of a functor from the category of Boolean algebras to the category of swap structures for each LFI, suggests that swap structures can be seen as non-deterministic twist structures. This opens new avenues for dealing with non-algebraizable logics by the more general methodology of multialgebraic semantics. (shrink)

DOLCE, the first top-level (foundational) ontology to be axiomatized, has remained stable for twenty years and today is broadly used in a variety of domains. dolce is inspired by cognitive and linguistic considerations and aims to model a commonsense view of reality, like the one human beings exploit in everyday life in areas as diverse as socio-technical systems, manufacturing, financial transactions and cultural heritage. dolce clearly lists the ontological choices it is based upon, relies on philosophical principles, is richly formalized, (...) and is built according to well-established ontological methodologies, e.g. OntoClean. Because of these features, it has inspired most of the existing top-level ontologies and has been used to develop or improve standards and public domain resources (e.g. CIDOC CRM, DBpedia and WordNet). Being a foundational ontology, dolce is not directly concerned with domain knowledge. Its purpose is to provide the general categories and relations needed to give a coherent view of reality, to integrate domain knowledge, and to mediate across domains. In these 20 years dolce has shown that applied ontologies can be stable and that interoperability across reference and domain ontologies is a reality. This paper briefly introduces the ontology and shows how to use it on a few modeling cases. (shrink)

The logics of formal inconsistency (LFIs, for short) are paraconsistent logics (that is, logics containing contradictory but non-trivial theories) having a consistency connective which allows to recover the ex falso quodlibet principle in a controlled way. The aim of this paper is considering a novel semantical approach to first-order LFIs based on Tarskian structures defined over swap structures, a special class of multialgebras. The proposed semantical framework generalizes previous aproaches to quantified LFIs presented in the literature. The case of QmbC, (...) the simpler quantified LFI expanding classical logic, will be analyzed in detail. An axiomatic extension of QmbC called QLFI1o is also studied, which is equivalent to the quantified version of da Costa and D'Ottaviano 3-valued logic J3. The semantical structures for this logic turn out to be Tarkian structures based on twist structures. The expansion of QmbC and QLFI1o with a standard equality predicate is also considered. (shrink)

In this paper we will give a critical account of Plantinga’s well-known argument to the effect that the existence of an omnipotent and morally perfect God is consistent with the actual presence of evil. After presenting Plantinga’s view, we critically discuss both the idea of divine knowledge of conditionals of freedom and the concept of transworld depravity. Then, we will sketch our own version of the Free-Will Defence, which maintains that moral evil depends on the misuse of human freedom. However, (...) our argument does not hinge on problematic metaphysical assumptions, but depends only on a certain definition of a free act and a particular interpretation of divine omniscience. (shrink)

The species concept is one of the central concepts in biological science. Although modern systematics speculates about the existence of a complex hierarchy of nested taxa, biological species are considered particularly important for the active role they play in evolution. However, neither theoretical biologists nor philosophers of biology have come to an agreement about what a species is. In this chapter, we address two questions pertaining to biological species: (1) are they individuals or universals? and (2) are they bona fide (...) or fiat entities? In section The Species-as-Individuals View, we illustrate the reasons that have led many scholars to support the view that species are individuals. In the next two sections, we show that the relational concepts of species – on which the species-as-individuals view is based – provide neither necessary nor sufficient conditions for species membership. This seriously undermines the species-as-individuals view. In the section A Conceptualist Model for the Metaphysics of Species, we advance the proposal that species are fiat concepts (and thus, universal entities partially dependent on the human mind) carved in a multi-dimensional space representing the properties that the biological organisms possess. The final section concludes. (shrink)

In §21 of Grundgesetze der Arithmetik asks us to consider the forms: a a2 = 4 and a a > 0 and notices that they can be obtained from a φ(a) by replacing the function-name placeholder φ(ξ) by names for the functions ξ2 = 4 and ξ > 0 (and the placeholder cannot be replaced by names of objects or of functions of 2 arguments).

Clinical guidelines are special types of plans realized by collective agents. We provide an ontological theory of such plans that is designed to support the construction of a framework in which guideline-based information systems can be employed in the management of workflow in health care organizations. The framework we propose allows us to represent in formal terms how clinical guidelines are realized through the actions of are realized through the actions of individuals organized into teams. We provide various levels of (...) implementation representing different levels of conformity on the part of health care organizations. Implementations built in conformity with our framework are marked by two dimensions of flexibility that are designed to make them more likely to be accepted by health care professionals than standard guideline-based management systems. They do justice to the fact 1) that responsibilities within a health care organization are widely shared, and 2) that health care professionals may on different occasions be non-compliant with guidelines for a variety of well justified reasons. The advantage of the framework lies in its built-in flexibility, its sensitivity to clinical context, and its ability to use inference tools based on a robust ontology. One disadvantage lies in its complicated implementation. (shrink)

The research presented in this article is motivated by the increasing importance of complex human relations in linked data, either extracted from social networks, or found in existing databases. The FOAF vocabulary, targeted in our research, plays a central role in those data, and is a model for lightweight ontologies largely used in linked data, such as the DBpedia ontology and schema-org. We provide an overview of FOAF and other approaches for describing human relations, followed by a detailed analysis and (...) critique of the FOAF Relationship Vocabulary, the most important FOAF extension. We propose an explicit formal axiomatization of this vocabulary, and an ontological analysis concerning the properties used to describe human relationships. We analyze the distribution of human relations based on their epistemological status, and define an ontoepistemic meta-property as characteristic of some of these predicates. Our analysis is generalizable to semantic modeling of social networks. Additionally, the modeling patterns used in other relevant linked data vocabularies are analyzed for comparison. (shrink)

In 2001, W. Carnielli and Marcos considered a 3-valued logic in order to prove that the schema ϕ ∨ (ϕ → ψ) is not a theorem of da Costa’s logic Cω. In 2006, this logic was studied (and baptized) as G'3 by Osorio et al. as a tool to define semantics of logic programming. It is known that the truth-tables of G'3 have the same expressive power than the one of Łukasiewicz 3-valued logic as well as the one of Gödel (...) 3-valued logic G3. From this, the three logics coincide up-to language, taking into acccount that 1 is the only designated truth-value in these logics. -/- From the algebraic point of view, Canals-Frau and Figallo have studied the 3-valued modal implicative semilattices, where the modal operator is the well-known Moisil-Monteiro-Baaz Δ operator, and the supremum is definable from this. We prove that the subvariety obtained from this by adding a bottom element 0 is term-equivalent to the variety generated by the 3-valued algebra of G'3. The algebras of that variety are called G'3-algebras. From this result, we obtain the equations which axiomatize the variety of G'3-algebras. Moreover, we prove that this variety is semisimple, and the 3-element and the 2-element chains are the unique simple algebras of the variety. Finally an extension of G'3 to first-order languages is presented, with an algebraic semantics based on complete G'3-algebras. The corresponding soundness and completeness theorems are obtained. (shrink)

In this paper I revisit nineteenth-century debates over historical objectivity and the political functions of historiography. I focus on two central contributors to these debates: Leopold von Ranke and Johann Gustav Droysen. In their takes on objectivity and subjectivity, impartiality and political engagement I reveal diametrically opposed solutions to shared concerns: how can historians reveal history to be meaningful without taking recourse to speculative philosophy? And how can they produce a knowledge that is relevant to the present when the (...) project of “exemplary” history has been abandoned? I put a special focus on the relativist themes in Ranke’s and Droysen’s answers to these questions. Ranke’s demand for impartiality leads him to think of all historical epochs as equally valid, while Droysen’s emphasis on the historian’s subjectivity relativizes historical truth. In order to explain why Ranke and Droysen nevertheless remained unfazed by the problem of historical relativism, I analyze their normative conceptions of the historian’s disciplinary ethos. I show that Ranke and Droysen think of objective impartiality and subjective partiality not only in methodological terms, but also in terms of justice and ethic duty. This normative element secures the professional study of history an ethical-political relevance for the present. (shrink)

I say: “Oh, what a beautiful surrealist picture!” With quite precise awareness: this páthos, these emotions of mine do not stem from our common sense. An aesthetic judgment is founded on an immediate subjective intuition: an emotion or a free feeling of a single subject towards an object. A universal sense, possibly. Some judgments of ours in ethics and in law are no different from our perceptions in front of art. It would be the same for a hypothetical sentence of (...) the judge that concluded with these words: “I acquit Arsenio Lupin because of his magnificent handlebar moustache like that of Guy de Maupassant”. Everyone would think intuitively that it is an unfair sentence. Is there aesthetics of terror? The case that the article intends to examine is that of the famous kidnapping and murder of the Italian statesman Aldo Moro by the “Brigate Rosse” [Red Brigades]. The method used here consists in studying the image of the kidnapping as iconic documentation of reality, and, above all, as an ethical-legal judgment about the terrorist crime. Moro was photographed during his kidnapping. There are at least two pictures. Both constitute an extraordinary source for a judgment on the basis of an image. In both of them, Aldo Moro is pictured in front of a Red Brigades banner during the captivity. In what sense do these pictures document an aesthetic judgment concerning the “case Moro”? The answer can be found in a remarkable iconic coincidence of these pictures with a masterpiece by Georges Rouault devoted to the theme of the “Ecce Homo”. The Gospel in the “Ecce Homo” scene narrates how Pontius Pilate wanted to arouse the compassion of the people with a scourging and the exposure of Jesus to the crowd. The plate under consideration is entitled “Qui ne se grime pas?” [Who does not have a painted face?] and is a key work in Rouault’s suite of prints Miserere, dated for 1923. (shrink)

Should objects count as necessarily having certain properties, despite their not having those properties when they do not exist? For example, should a cat that passes out of existence, and so no longer is a cat, nonetheless count as necessarily being a cat? In this essay I examine different ways of adapting Aldo Bressan’s MLν so that it can accommodate an affirmative answer to these questions. Anil Gupta, in The Logic of Common Nouns, creates a number of languages that (...) have a kinship with Bressan’s MLν , three of which are also tailored to affirmatively answering these questions. After comparing their languages, I argue that metaphysicians and philosophers of language should prefer MLν to Gupta’s languages in most applications because it can accommodate essential properties, like being a cat, while being more uniform and less cumbersome. (shrink)

Venus im Pelz is not just a book on masochism, love or the conflict of the sexes, but is also, in its own way, a work that aims to ridicule the philosophy par excellence, that in particular of Kant and Hegel, the great Fathers-Masters of philosophy, capable with their systems to rationalize the theme of voluntary submission, restoring the threatened order. In this direction, the same masochistic subversion, which with Severin had attempted to symbolically depose the Father, as the historical-political-cultural (...) antecedent of Law and power, nevertheless appears destined to recompose, thanks to philosophy and its history, the product themselves of patriarchal speculations, always prompted to cage any singulariity prone to deviate from the trajectory traced by civilization. It is within this patrolling infrastructure that Severin, after «that cruel catastrophe of my life», will continue his existence, converted, from «rebelled by submission», into a new reactionary Father who now uses the whip with women, and that, now healed with its «moral steadiness [...] I learned to work, to fulfill duties» - tamed «with the Kantian ethics of the dignity of moral value that tunes with the Hegelian ethics of the redemption of the servant through the objectification of labor», does not realize that he has become himself an object of power, so that one day he may peacefully die in a rational and productive way. (shrink)

L'articolo discute "A Midsummer’s Night Sex Comedy", film del 1982 di Woody Allen, concentrandosi sulla dialettica tra i personaggi di Andrew (Woody Allen) e Leopold (José Ferrer) e in particolare sul loro atteggiamento nei confronti del soprannaturale. Sostengo che per comprendere appieno questa dialettica è necessario abbracciare una concezione in senso lato wittgensteiniana di che cosa vuol dire che qualcosa è soprannaturale.

An introduction to the special issue on epistemic logic and the foundations of game theory edited by Michael Bacharach and Philippe Mongin. Contributors are Michael Bacharach, Robert Stalnaker, Salvatore Modica and Aldo Rustichini, Luc Lismont and Philippe Mongin, and Hyun-Song Shin and Timothy Williamson.