It is not certain when or by whom S0009838800011642_inline1 and S0009838800011642_inline2 were first technically distinguished as genus and species. The distinction does not appear in Plato's extant writings, whereas Aristotle seems to take it for granted in the Topics, which is usually regarded as among his earliest treatises. In his dialogues Plato seems able to use S0009838800011642_inline3 interchangeably to denote any group or division in a diairesis, including the group that is to be divided.

E=mc 2 is found to be a special case ofE=σ ±1cn, where σ is any one of four susceptibilities, namely electric, magnetic, gravitational, and elastic. Letl be length,t time,Δt time dilation, andΔl a measure of Fitzgerald-Lorentz contraction. A particle is stated to be the manifestation of a collection of susceptibilities which arise when(Δl)/1=(Δt)/t. Then(ΔE)/E=5 (Δt)/2t=±(Δσ)/σ. Corresponding to susceptibility, special energy particles are postulated which exhibitSU(3) symmetry, Related to the susceptibilities are five new Heisenberg uncertainty relations. Three new conservation laws for (...) particles are proposed. (shrink)

The principle that a moving body must continue to move unless something stops it was not known to Aristotle nor even unconsciously assumed by him. The effect of this ignorance upon his philosophy was discussed in C.Q. 1939, p. 129 f. It forbade him to conceive of a mechanist theory in the nineteenth-century sense. It enabled him to hold, what must seem self-contradictory to us, that all events have definable causes without there being a universal nexus of causes and effects (...) . And it compelled him to believe that nature could not be orderly unless guided by a purposive force. Therefore he attacked those scientists who had thought that the world could be explained in terms of the compulsions and interactions of natural stuffs—a principle which they vaguely called Necessity, Ananke. In attacking their doctrine A. cannot have thought he was attacking the mechanistic determinism which modern critics have detected in their words: for he could not even conceive of such an idea. There is an a fortiori case for arguing that his predecessors cannot have conceived of it either. But it is always possible that A. misunderstood them. And there is still Epicurus to consider. (shrink)

There is a paucity of experimental data addressing how peers influence adolescent risk-taking. Here, we examined peer effects on risky decision-making in adults and adolescents using a virtual social context that enabled experimental control over the peer “interactions”. 40 adolescents (age 11-18) and 28 adults (age 20-38) completed a risk-taking (Wheel of Fortune) task under 4 conditions: in private; while being observed by (fictitious) peers; and after receiving ‘risky’ or ‘safe’ advice from the peers. For high-risk gambles (but not medium-risk (...) or even gambles), adolescents made more risky decisions under peer observation than adults. Adolescents, but not adults, tended to resist ‘safe’ advice for high-risk gambles. Although both groups tended to follow ‘risky’ advice for high-risk gambles, adults did so more than adolescents. These findings highlight the importance of distinguishing between the effects of peer observation and peer advice on risky decision-making. (shrink)

This little volume shows a remarkable familiarity with both continental and Anglo-American literature on the subjects of probability and induction. Discussion is both expository and critical. The author argues in favor of a psychological-pragmatic interpretation of the principle of induction and the theory of confirmation.--A. P. D. M.

Meaning is interpreted in terms of distributional regularities in the corpus of a language; synonymy in terms of contrastive and non-contrastive sets of morphemic environments. For this blending of philosophical analysis and empirical linguistics, however, no defense is offered, though in the course of his sketch the author registers subtle and unconventional insights into key concepts and issues in philosophy of language.--A. P. D. M.

As a clear, well documented and relatively complete introduction to Wittgenstein's famous book this commentary fulfills a long felt need. Rules for structuring Wittgenstein's statements are helpfully discussed, the terminology of the English translation is significantly improved upon, and the ontological purport of the Tractatus, as well as its striking parallels to Kantian philosophy, are convincingly stressed. But in recasting Wittgenstein's thought in a series of interpretative theses some basic themes become distorted: the notion of "category" is foreign to Wittgenstein's (...) thought and fails to capture the gradual transition from picturing to the "ladder"; the interpretation of "thing" as covering both objects and predicates or relations is highly dubious.--A. P. D. M. (shrink)

This paper examines creative strategies employed inscientific modelling. It is argued that being creativepresents not a discrete event, but rather an ongoingeffort consisting of many individual `creative acts''.These take place over extended periods of time andcan be carried out by different people, working ondifferent aspects of the same project. The example ofextended extragalactic radio sources shows that, inorder to model a complicated phenomenon in itsentirety, the modelling task is split up into smallerproblems that result in several sub-models. This is away (...) of using cognitive resources efficiently and in away which overcomes their limitations. Another aspectof modelling that requires creativity is theemployment of visualisation in order to reassemble,i.e. recreate the unity of, the various sub-models bymeans of visualisation. This illustrates how thecreative effort required to deal with the complexityof the complicated phenomenon of radio sources ischannelled in order to use cognitive resourcesefficiently and to stay within their capacity. (shrink)

Truths are determined not by what we believe, but by the way the world is. Or so realists about truth believe. Philosophers call such theories correspondence theories of truth. Truthmaking theory, which now has many adherents among contemporary philosophers, is the most recent development of a realist theory of truth, and in this book D. M. Armstrong offers the first full-length study of this theory. He examines its applications to different sorts of truth, including contingent truths, modal truths, truths about (...) the past and the future, and mathematical truths. In a clear, even-handed and non-technical discussion he makes a compelling case for truthmaking and its importance in philosophy. His book marks a significant contribution to the debate and will be of interest to a wide range of readers working in analytical philosophy. (shrink)

D. M. Armstrong; II—Does Knowledge Entail Belief?, Proceedings of the Aristotelian Society, Volume 70, Issue 1, 1 June 1970, Pages 21–36, https://doi.org/10.109.

In this important study D. M. Armstrong offers a comprehensive system of analytical metaphysics that synthesises but also develops his thinking over the last twenty years. Armstrong's analysis, which acknowledges the 'logical atomism' of Russell and Wittgenstein, makes facts the fundamental constituents of the world, examining properties, relations, numbers, classes, possibility and necessity, dispositions, causes and laws. All these, it is argued, find their place and can be understood inside a scheme of states of affairs. This is a comprehensive and (...) rigorously this-worldly account of the most general features of reality, argued from a distinctive philosophical perspective, and it will appeal to a wide readership in analytical philosophy. (shrink)

In this important study D. M. Armstrong offers a comprehensive system of analytical metaphysics that synthesises but also develops his thinking over the last twenty years. Armstrong's analysis, which acknowledges the 'logical atomism' of Russell and Wittgenstein, makes facts the fundamental constituents of the world, examining properties, relations, numbers, classes, possibility and necessity, dispositions, causes and laws. All these, it is argued, find their place and can be understood inside a scheme of states of affairs. This is a comprehensive and (...) rigorously this-worldly account of the most general features of reality, argued from a distinctive philosophical perspective, and it will appeal to a wide readership in analytical philosophy. (shrink)

The central insight of Darwin's Origin of Species is that evolution is an ecological phenomenon, arising from the activities of organisms in the 'struggle for life'. By contrast, the Modern Synthesis theory of evolution, which rose to prominence in the twentieth century, presents evolution as a fundamentally molecular phenomenon, occurring in populations of sub-organismal entities - genes. After nearly a century of success, the Modern Synthesis theory is now being challenged by empirical advances in the study of organismal development and (...) inheritance. In this important study, D. M. Walsh shows that the principal defect of the Modern Synthesis resides in its rejection of Darwin's organismal perspective, and argues for 'situated Darwinism': an alternative, organism-centred conception of evolution that prioritises organisms as adaptive agents. His book will be of interest to scholars and advanced students of evolutionary biology and the philosophy of biology. (shrink)

Given an argumentation network we associate with it a modal formula representing the ‘logical content’ of the network. We show a one-to-one correspondence between all possible complete Caminada labellings of the network and all possible models of the formula.

Given an argumentation network with initial values to the arguments, we look for algorithms which can yield extensions compatible with such initial values. We find that the best way of tackling this problem is to offer an iteration formula that takes the initial values and the attack relation and iterates a sequence of intermediate values that eventually converges leading to an extension. The properties surrounding the application of the iteration formula and its connection with other numerical and non-numerical techniques proposed (...) by others are thoroughly investigated in this paper. (shrink)

According to historical theories of biological function, a trait's function is determined by natural selection in the past. I argue that, in addition to historical functions, ahistorical functions ought to be recognized. I propose a theory of biological function which accommodates both. The function of a trait is the way it contributes to fitness and fitness can only be determined relative to a selective regime. Therefore, the function of a trait can only be specified relative to a selective regime. Apart (...) from its desirable pluralism, only this view of relational function can support the function/accident and function/malfunction distinctions commonly thought to be part of the concept of function. Furthermore, only relational function correctly characterizes the explanatory consequences of function attributions in evolutionary biology. (shrink)

There is a generic way to add any new feature to a system. It involves identifying the basic units which build up the system and introducing the new feature to each of these basic units. In the case where the system is argumentation and the feature is probabilistic we have the following. The basic units are: the nature of the arguments involved; the membership relation in the set S of arguments; the attack relation; and the choice of extensions. Generically to (...) add a new aspect to an argumentation network \ can be done by adding this feature to each component. This is a brute-force method and may yield a non-intuitive or meaningful result. A better way is to meaningfully translate the object system into another target system which does have the aspect required and then let the target system endow the aspect on the initial system. In our case we translate argumentation into classical propositional logic and get probabilistic argumentation from the translation. Of course what we get depends on how we translate. In fact, in this paper we introduce probabilistic semantics to abstract argumentation theory based on the equational approach to argumentation networks. We then compare our semantics with existing proposals in the literature including the approaches by M. Thimm and by A. Hunter. Our methodology in general is discussed in the conclusion. (shrink)

Breaking new ground in the debate about the relation of mind and body, David Armstrong's classic text - first published in 1968 - remains the most compelling and comprehensive statement of the view that the mind is material or physical. In the preface to this new edition, the author reflects on the book's impact and considers it in the light of subsequent developments. He also provides a bibliography of all the key writings to have appeared in the materialist debate.

The political philosophy of health care has been characterized by considerable conceptual inflation in recent years. First, the concept of health that lies at its core has come to encompass ever-increasing aspects of individuals’ existences. And second, the emergence of the public health perspective has increased the range of resources relevant to health equity. This expansion has not been without cost. The decision to include more rather than less within the ambit of "health" is ultimately a moral/political rather than an (...) ontological or metaphysical one, and there are several ethical reasons to define the scope of theories of distributive justice in health narrowly. (shrink)

Plotinus is the first Greek philosopher to hold a systematic theory of consciousness. The key feature of his theory is that it involves multiple layers of experience: different layers of consciousness occur in different levels of self. This layering of higher modes of consciousness on lower ones provides human beings with a rich experiential world, and enables human beings to draw on their own experience to investigate their true self and the nature of reality. This involves a robust notion of (...) subjectivity. However, it is a notion of subjectivity that is unique to Plotinus, and remarkably different from the Post-Cartesian tradition. Behind the plurality of terms Plotinus uses to express consciousness, and behind the plurality of entities to which Plotinus attributes consciousness, lies a theory of human consciousness. It is a Platonist theory shaped by engagement with rival schools of ancient thought. (shrink)

Moral inversion, the fusion of skepticism and utopianism, is a preoccupying theme in Polanyi’s work from 1946 onward. In part 1, the author analyzes Polanyi’s complex account of the intellectual developments that are implicated in a cascade of inversions in which the good is lost through complicated, misguided, and unrealistic dedication to the good. Parts 2 and 3 then address two of the most basic of the objections to Polanyi’s theory voiced by Zdzislaw Najder. To Najder’s complaint that Polanyi is (...) not clear in his use of the term “moral,” the author replies that the pivotal distinction in Polanyi’s moral theory is not the moral against the intellectual, but the passions against the appetites. In considering Najder’s complaint that Polanyi’s argument represents a naive instance of ethnocentric absolutism, the author undertakes to show Polanyi’s consistency and perspectival self-awareness by focusing on Polanyi’s account of authority and dissent within a tradition, as well as on Polanyi’s treatment of persuasion as a heuristic passion. (shrink)