We employ the Social Signaling Model and life history of a Western Dani big-man, Tibenuk, to analyze a neglected curiosity in the career of the big-man type. The big-man is renowned as an economic entrepreneur, the master of material displays. In New Guinea, however, big-men had invariably first gained fame and some influence as eminent warriors. The SSM accounts for this two-part career path by proposing that small-scale social organization rests on honest, competitive signaling of individual and collective fighting strength, (...) with leaders being those who excel in these contests. The performances for which big-men are already known, conspicuous ceremonial displays, broadcast this strength indirectly. Explicitly conceptualized as symbolic fighting, they constituted indexical proxies for their sponsors’ individual and collective willingness and ability to fight. Success on the battlefield, though, signaled fighting strength more directly. Men therefore had to demonstrate strength on both the battlefield and the ceremonial ground if they were to become big-men. This was Tibenuk’s achievement. When he was young and at his physical peak, he demonstrated outstanding capability in war. War is a young man’s game, however, and as his physical capacities waned, he shifted to politics, an older man’s game, honing his political talents and developing extensive political networks that allowed him to sponsor massive pig feasts, the principal form of conspicuous ceremonial display. Tibenuk’s career also reveals synergies between warrior and political talents that hitherto have been overlooked in big-man analysis. (shrink)

My argument here is principally that the ubiquity of epistemics is evident in the ways in which knowledge claims and attributions of knowledge to self and other are embedded in turns and sequences, inform the design of turns at talk, are amended in the corrections that speakers sometimes make, to change from one epistemic stance to another, and are contested, in the occasional ‘struggles’ between participants, as to which of them has epistemic primacy. I show that these cannot be understood (...) in cognitive terms; furthermore, I show that epistemics – again the attribution of knowledge to self and other – is ‘real’ for participants. That is, in these four practices and aspects of interaction it is evident that participants orient to their states of knowledge relative to one another, on a moment-by-moment, turn-by-turn basis. (shrink)

This volume brings together Paul Williams's previously published papers on the Indian and Tibetan interpretations of selected verses from the eighth and ninth chapters of the Bodhicaryavatara. In addition, there is a much longer version of the paper 'Identifying the Object of Negation', and nearly half the book consists of a wholly new essay, 'The Absence of Self and the Removal of Pain', subtitled 'How Santideva Destroyed the Bodhisattva Path'. This book will be of interest to those concerned with (...) the history and interpretation of Indian and Tibetan philosophy. (shrink)

This book is an important study in the philosophy of the mind; drawing on the work of philosopher Wilfrid Sellars and the theory of critical realism to develop a novel argument for understanding perception and metaphysics.

Arguments for the extended mind suggest the possibility of extended knowers, individuals whose epistemic standing is tied to the operation of cognitive circuits that extend beyond the bounds of skin and skull. When applied to the Internet, this idea yields the possibility of Internet-extended knowledge, a form of extended knowledge that derives from our interactions and engagements with the online environment. This, however, yields a tension: proponents of the extended mind have suggested that cognitive extension requires the automatic endorsement of (...) bio-external content, but such a commitment appears to conflict with the need to carefully evaluate the veracity of online information. Lukas Schwengerer proposes a solution to this problem. He suggests that proponents of the extended mind ought to accept an alternative conception of the extended mind, one that allows for the evaluation of online content via the exercise of intellectual virtue. We highlight a number of problems with this proposal and suggest that further research is required before a virtue-theoretic approach to Internet-extended knowledge can be adopted. On a more positive note, we suggest that the exercise of intellectual virtue may play an important role in the developmental emergence of Internet-extended knowers. (shrink)

This book recounts the remarkable history of efforts by significant medieval thinkers to accommodate the ontology of the Trinity within the framework of Aristotelian logic and ontology. These efforts were remarkable because they pushed creatively beyond the boundaries of existing thought while trying to strike a balance between the Church's traditional teachings and theoretical rigor in a context of institutional politics. In some cases, good theology, good philosophy, and good politics turned out to be three different things. The principal thinkers (...) discussed are Augustine, Boethius, Abélard, Gilbert of Poitiers, Bonaventure, Aquinas, Scotus, and Ockham. The aspects of Trinitarian doctrine dealt with are primarily internal ontological questions about the Trinity. The approach draws on history of theology and philosophy, as well as on the modern formal disciplines of set-theoretic semantics and formal ontology. Augustine inaugurated the project of constructing models of the Trinity in language drawn from Platonic and Aristotelian philosophy, especially the conceptual framework of Aristotle's Categories. He used the Aristotelian notions of substance and relation to set up a model whose aim was not so much to demystify the Trinity as to demonstrate the logical consistency of maintaining that there is one and only one God at the same time as maintaining that there are three distinct persons, each of whom is God. Standing against this tradition are various heretical accounts of the Trinity. The book also analyzes these traditions, using the same techniques. All these accounts of the Trinity are evaluated relative to the three constraints under which they were formed, bearing in mind that the constraints on philosophical theorizing are not limited to internal consistency but also take note of explanatory power. Besides analyzing and evaluating individual accounts of the Trinity, the book provides a novel framework within which different theories can be compared. (shrink)

Includes a chapter on visual perception.

This book discusses some of the most challenging ideas emerging out of the research program on institutional diversity associated with the 2009 co-recipient of 2009 Nobel Prize in economics, Elinor Ostrom, while outlining a set of new research directions and an original interpretation of the significance and future of this program.

This paper argues that questions concerning the nature of concepts that are central in cognitive psychology are also important to epistemology and that there is more to conceptual change than mere belief revision. Understanding of epistemic change requires appreciation of the complex ways in which concepts are structured and organized and of how this organization can affect belief revision. Following a brief summary of the psychological functions of concepts and a discussion of some recent accounts of what concepts are, I (...) propose a view of concepts as complex computational structures. This account suggests that conceptual change can come in varying degrees, with the most extreme consisting of fundamental conceptual reorganizations. These degrees of conceptual change are illustrated by the development of the concept of an acid. (shrink)

Medicine increasingly envisions health promotion in terms of reducing risk as determined by quantitative risk factors, such as blood pressure, blood lipids, or genetic variants. This essay argues that this vision of health care as risk reduction is dangerous for Christian bioethics, since risk can be infinitely reduced leading to a self-defeating spiral of iatrogenic effects. Moreover, it endangers character because this vision of health is connected to a reductionist vision of the body and an understanding of individual risk that (...) undermines the more communal virtue of solidarity. The essay concludes by discussing how recent Thomistic analyses in favor of physical enhancements illustrate some of the problems that envisioning health care in terms of risk reduction holds for Christian bioethics. (shrink)

I discuss the problem of whether true contradictions of the form “x is P and not P” might be the expression of an implicit relativization to distinct respects of application of one and the same predicate P. Priest rightly claims that one should not mistake true contradictions for an expression of lexical ambiguity. However, he primarily targets cases of homophony for which lexical meanings do not overlap. There exist more subtle forms of equivocation, such as the relation of privative opposition (...) singled out by Zwicky and Sadock in their study of ambiguity. I argue that this relation, which is basically a relation of general to more specific, underlies the logical form of true contradictions. The generalization appears to be that all true contradictions really mean “x is P in some respects/to some extent, but not in all respects/not to all extent”. I relate this to the strict-tolerant account of vague predicates and outline a variant of the account to cover one-dimensional and multidimensional predicates. (shrink)

What Numbers Could Not Be’) that an adequate account of the numbers and our arithmetic practice must satisfy not only the conditions usually recognized to be necessary: (a) identify some w-sequence as the numbers, and (b) correctly characterize the cardinality relation that relates a set to a member of that sequence as its cardinal number—it must also satisfy a third condition: the ‘<’ of the sequence must be recursive. This paper argues that adding this further condition was a mistake—any w-sequence (...) would do, no matter how undecidable its ‘<’ relation. (shrink)

Supporters of G.W.F. Hegel's philosophy have largely shied away from relating his logic to modern symbolic or mathematical approaches. While it has predominantly been the non-Greek discipline of algebra that has informed modern mathematical logic, philosopher Paul Redding argues that the approaches of Plato and Aristotle to logic were deeply shaped by the arithmetic and geometry of classical Greek culture. And by ignoring the fact that Hegel's logic also has this deep mathematical dimension, conventional Hegelians have missed some of (...) Hegel's greatest insights. In Conceptual Harmonies, Redding develops an account of Hegel's logic against a classical and modern historical background that is rarely considered. He stresses Hegel's attention to the Platonic background of Aristotle's original syllogistic and beyond. He then links these Platonic elements to Leibniz's modern revitalization of the logical tradition and then to new forms of algebraic geometry emerging in Hegel's lifetime. Redding thereby reestablishes aspects of Hegel's philosophy that are essential if Hegel is to be taken as a thinker relevant not only to contemporary philosophy, but also to current philosophical conceptions of logic. (shrink)

An exploration of the consequences of various ideas in the thought of John Calvin, and the influence of his ideas on later theologians. The emphasis is on philosophical ideas within Calvin's theology, dealing in turn with epistemological, metaphysical, and ethical issues. Helm provides a fresh perspective on Calvin's theological context and legacy.

No detailed description available for "Platone".

In Part I of this paper, we identified and compared various schemes for trivalent truth conditions for indicative conditionals, most notably the proposals by de Finetti and Reichenbach on the one hand, and by Cooper and Cantwell on the other. Here we provide the proof theory for the resulting logics DF/TT and CC/TT, using tableau calculi and sequent calculi, and proving soundness and completeness results. Then we turn to the algebraic semantics, where both logics have substantive limitations: DF/TT allows for (...) algebraic completeness, but not for the construction of a canonical model, while CC/TT fails the construction of a Lindenbaum-Tarski algebra. With these results in mind, we draw up the balance and sketch future research projects. (shrink)

Exploring the 'roads less travelled', MacDonald continues his monumental essay in the history of ideas. The history of heterodox ideas about the concept of mind takes the reader from the earliest records about human nature in Ancient Egypt, the Ancient Near East, and the Zoroastrian religion, through the secret teachings in the Hermetic and Gnostic scriptures, and into the transformation of ideas about the mind, soul and spirit in the late antique and early medieval epochs. These transitions include discussion of (...) the influence of Central Asian shamanism, Manichean ideas about the soul in light and darkness, and Neoplatonic theurgy, 'working-on-god-within'. Sections on the medieval period are concerned with the rediscovery of magical practices and occult doctrines from Roger Bacon to Francis Bacon, the adaptation of Neoplatonic and esoteric ideas in the medieval Christian mystics, and the survival of these ideas mixed with natural science in the works of von Helmont, Leibniz and Goethe. The book concludes with an investigation of the many forms of dualism in accounts of the human mind and soul, and the concept of dual-life which underpins our aspiration to understand how humans could have an immortal nature like the gods. (shrink)

Paul Tillich ; Volltext // Exemplar mit der Signatur: München, Bayerische Staatsbibliothek -- Var. 382 t-1/2.

In 2017 AlphaZero, a neural network-based chess engine shook the chess world by convincingly beating Stockfish, the highest-rated chess engine. In this paper, I describe the technical differences between the two chess engines and based on that, I discuss the impact of the modeling choices on the respective epistemic opacities. I argue that the success of AlphaZero’s approach with neural networks and reinforcement learning is counterbalanced by an increase in the epistemic opacity of the resulting model.

Einführung in Paul Tillichs philosophische Schriften Gunther Wenz Daß der Gott Abrahams, Isaaks und Jakobs und der Gott der Philosophen der gleiche Gott sei ...

Professor Clark's splendid essay represents a step forward from which there should be no retreat. Ourde factomoral cognition involves a complex and evolving interplay between, on the one hand, thenondiscursive cognitive mechanisms of the biological brain, and, on the other, the often highly discursive extra-personal “scaffolding” that structures the social world in which our brains are normally situated, a world that has been, to a large extent, created by our own moral and political activity. That interplay extends the reach and (...) elevates the quality of the original nondiscursive cognition, and thus any adequate account of moral cognition must address both of these contributing dimensions. An account that focuses only on brain mechanisms will be missing something vital. (shrink)

Ground-coupled heating-cooling systems (GCHCSs) exchange heat between the built environment and the subsurface using pipework buried in trenches or boreholes. If heat pumps in GCHCSs are powered by “green electricity,” they offer genuine carbon-free heating-cooling; for this reason, there has been a surge in the technology in recent years. Interference between adjoining installations is being reported, raising issues of sustainability in terms of performance, equitable sharing of natural resources, and localized ecological impacts. Using an analytical model for heat transport in (...) porous media, sensitivity analyses have been obtained for open-loop systems in typical hydro-geological settings for urban GSHCSs in the United Kingdom, revealing that breakthrough of injected water will likely lead to significant declines in system performance in less than 25 years for well spacings less than 300 m, unless injection rates are kept below 250 m3/d. Only by cooperatively planning will adjoining landowners in urban areas achieve large-scale sustainable system designs. (shrink)