This paper re-examines the question of whether quirks of early human foetal development tell against the view (conceptionism) that we are human beings at conception. A zygote is capable of splitting to give rise to identical twins. Since the zygote cannot be identical with either human being it will become, it cannot already be a human being. Parallel concerns can be raised about chimeras in which two embryos fuse. I argue first that there are just two ways of dealing with (...) cases of fission and fusion and both seem to be available to the conceptionist. One is the Replacement View according to which objects cease to exist when they fission or fuse. The other is the Multiple Occupancy View – both twins may be present already in the zygote and both persist in a chimera. So, is the conceptionist position tenable after all? I argue that it is not. A zygote gives rise not only to a human being but also to a placenta – it cannot already be both a human being and a placenta. Neither approach to fission and fusion can help the conceptionist with this problem. But worse is in store. Both fission and fusion can occur before and after the development of the inner cell mass of the blastocyst – the entity which becomes the embryo proper. The idea that we become human beings with the arrival of the inner cell mass leads to bizarre results however we choose to accommodate fission and fusion. (shrink)

One of the great Oxford philosopher's finest works, Essay on Metaphysics considers the nature of philosophy, and puts forward Collingwood's original and influential theories of causation, presuppositions, and the logic of question and answer. This new edition includes three fascinating unpublished pieces that illuminate and amplify the Essay.

"Ingarden held that philosophy divides into ontology and metaphysics. Ontology is an autonomous discipline in which we discover and establish the necessary connections between pure ideal qualities by intuitive analysis of the contents of ideas. This is an indispensable preparation for metaphysics, which aims to elucidate the necessary truths of factual existence. Each section of philosophy - theory of knowledge, philosophy of man, philosophy of nature and so on - has ontological and metaphysical aspects. Ingarden argues that every being is (...) a triple unity of matter (contents), form (of the.. (shrink)

For those with an interest in the most fundamental components of reality, reflecting on the simplest of things can yield a rich harvest. Consider two buttons, of exactly the same shade of red, one round and made of plastic, the other square and made of wood. Each button is clearly a distinct object in its own right: each is composed of a different portion of matter, each has its own spatial location. But are the buttons completely distinct? It might seem (...) so, but a little reflection can suggest otherwise. Both buttons are the same colour, they are each red. The buttons do not possess merely similar colours, they possess literally identical colours: one and the same colour, a particular shade of red, is found in both objects. This same colour can be also be found in many other objects. Colour, it seems, is not tied down to any specific time or place, in the way ordinary objects are. The same (literally identical) colour can exist at many times and places. And what holds for colour also holds for other shareable characteristics, such as shapes and sizes, and sounds. We are thus led to the (now familiar) distinction between particulars (spatially located objects) and universals (repeatable, multiply-located properties). Plato was no stranger to this line of reasoning, but he found himself driven to take several further steps. He observed that in ordinary life we never encounter a truly perfect circle (or square, or triangle, or straight line), but that we nonetheless have the concept of such a circle. Relying on the (no means absurd) assumption that meaningful terms must have referents – in order to be meaningful at all – he was led to the conclusion that the perfect circle must exist in a non-physical plane of reality, a dimension where perfection is possible. He called this changeless, timeless, realm the world of ‘Forms’. He further reasoned that since ‘circle’ is a universal, all other universals (such as redness) must inhabit this realm also. Resemblances among the familiar objects in the physical world are to be explained in terms of Forms ‘participating’, more or less adequately, in these objects.. (shrink)

What we normally think of as the “physical world” is also the world as experienced, that is, a world of appearances. Given this, what is the reality behind the appearances, and what might its relation be to consciousness and to constructive processes in the mind? According to Kant, the thing itself that brings about and supports these appearances is unknowable and we can never gain any understanding of how it brings such appearances about. Reflexive monism argues the opposite: the thing (...) itself is knowable as are the processes that construct conscious appearances. Conscious appearances (empirical evidence) and the theories derived from them can represent what the world is really like, even though such empirical knowledge is partial, approximate and uncertain, and conscious appearances are species-specific constructions of the human mind. Drawing on the writings of Husserl, Hoche suggests that problems of knowledge, mind and consciousness are better understood in terms of a “pure noematic” phenomenology that avoids any reference to a “thing itself”. I argue that avoiding reference to a knowable reality (behind appearances) leads to more complex explanations with less explanatory value and counterintuitive conclusions—for example Hoche’s conclusion that consciousness is not part of nature. The critical realism adopted by reflexive monism appears to be more useful, as well as being consistent with science and common sense. (shrink)

This paper presents a position called Scheme-based Alethic Realism, which reconciles a realist position on the nature of truth with a pluralistic Kantian perspective that allows for multiple environments in which truthmaking relationships are established. We argue that truthmaking functions are constrained by a stable phenomenal world and a stable cognitive architecture. This account takes truth as normatively distinct from epistemic justification while relativizing the truth conditions of our statements to what we call Frameworks. The pluralistic aspect allows that these (...) stable elements, while constraining representational and linguistic schemes, do not define a single framework for truthmaking relations. We strengthen this position by considering themes on situated rational agency from cognitive science and artificial intelligence, arguing that whatever enables or supports rational action within a particular environment must figure into some account of truth and truthmaking, and vice versa. (shrink)

Idealism is an ontological view, a view about what sorts of things there are in the universe. Idealism holds that what there is depends on our own mental structure and activity. Berkeley of course held that everything was mental; Kant held the more complex view that there was an important distinction between the mental and the physical, but that the structure of the empirical world depended on the activities of minds. Despite radical differences, idealists like Berkeley and Kant share what (...) Ralph Barton Perry called "the cardinal principle of idealism," namely, the principle that "being is dependent on the knowing of it."1 I believe that Hilary Putnam intends his "internal realism" to be a version of idealism in this broad sense; although many of his arguments concern semantic notions like truth and reference, he takes these semantic arguments to have ontological consequences. This is strongly suggested, for instance, by his claim that "'objects' themselves are as much made as discovered, as much products of our conceptual invention as of the 'objective' factor in experience."2 Or again there is this rather Kantian metaphor: "the mind and the world jointly make up the mind and the world."3 But just what is Putnam's ontology? (shrink)

This paper defends an idealist form of non-reductivism in the philosophy of mind. I refer to it as a kind of conceptual dualism without substance dualism. I contrast this idealist alternative with the two most widespread forms of non-reductivism: multiple realisability functionalism and anomalous monism. I argue first, that functionalism fails to challenge seriously the claim for methodological unity since it is quite comfortable with the idea that it is possible to articulate a descriptive theory of the mind. Second, that (...) as an attempt to graft conceptual mind-body dualism onto a monistic metaphysics, the idealist alternative bears some similarities to anomalous monism, but that it is superior to it because it is not vulnerable to the charge of epiphenomenalism. I conclude that this idealist alternative should be given serious consideration by those who remain unconvinced that a successful defence of the non-reducibility of the mental is compatible with the pursuit of a naturalistic agenda. (shrink)

This paper investigates Sellars's complex attitude towards idealism. It distinguishes between the epistemologically-based arguments that led many empiricists to idealism and a different set of more purely metaphysical arguments that came to dominate in German Idealism. Sellars resolutely rejects all of the epistemological arguments for idealism, but shows much greater sympathy with the metaphysical arguments. It is then argued that Sellars introduced his notion of picturing to avoid falling into such an idealism.

Berkeley's Idealism both advances Berkeley scholarship and serves as a useful guide for teachers and students.

In the sixth chapter of The View from Nowhere, Thomas Nagel attempts to identify a form of idealism. The position that he deems idealist is that what there is must be possibly conceivable by us. Nagel claims that this position is held by a number of contemporary philosophers. Even if this is so, I justify the view that it is not a form of idealism.

In the sixth chapter of The View from Nowhere, Thomas Nagel aims to identify a form of idealism, to isolate the argument for it and to counter this argument. The position that Nagel takes to be idealist is that what there is must be possibly conceivable by us. In this paper, I show that Nagel has not made a convincing case against this position. I then present an alternative case. In light of this alternative case, we have reason to reject (...) an important example that Nagel offers of a contemporary idealist, namely Donald Davidson. (shrink)

In this paper, I argue that the kind of idealism defended by Berkeley is a natural and almost unavoidable expression of his theism. Two main arguments are deployed, both starting from a theistic premise and having an idealist conclusion. The first likens the dependence of the physical world on the will of God to the dependence of mental states on a mind. The second likens divine omniscience to the kind of knowledge which it has often been supposed we have of (...) the contents of our own minds. After rebutting objections to these arguments, I conclude that both theists and non-idealists should be surprised and discomforted by my contentions. (shrink)

As regular readers of The Pluralist are aware, there appeared in 2008 an issue devoted to Jan Olof Bengtsson's The Worldview of Personalism.1 The issue included five articles, each concerned with a different aspect of the book; and after each article, there was a "Reply" by Bengtsson. In what follows, I shall say something about Bengtsson's reply to my own contribution, "Absolute and Personal Idealism." However, first let me briefly describe that article's argument.In "Absolute and Personal Idealism," I examined the (...) personalist attack on absolutism as formulated by Andrew Seth Pringle-Pattison in two works: Hegelianism and Personality and The Idea of God in the Light of Recent Philosophy. In the first section of .. (shrink)

In the process of knowledge imagination is, according to Hegel, the point where the human mind dissociates the object into two different contents - i.e. the thing of the external world and the internal content of the mind -, so that both versions of the object must corroborate each other in the way of a synthesis of heterogenous elements that only in their collation recognizes their identity. Comprehension sublates this dualism, and, by doing that, it sublates also the empiricist approach (...) to knowledge and the correspondence theory of truth which, for Hegel, are at its basis. (shrink)

The main claim of Hegel´s System is that in its inner structure reality is consubstantial with subjective reason, so that, in spite of all its eventual contradictions, reality can be understood by the human mind. However, the process of knowledge of the rationality of reality is at the same time the process of self-knowledge of the rationality that defines as such the human mind. In this general process of knowledge-self-knowledge, the different artistic forms and the different periods of the History (...) of Art have, according to Hegel, a precise function. The main objective of this article is, in the first place, to clarify the function that, according to Hegel, Art has in the process of self-knowledge of human rationality, and, secondly, to analyze in that context the logic of the sublation of Art in the discursive element of language. (shrink)

A World for Us aims to refute physical realism and establish in its place a form of idealism. Physical realism, in the sense in which John Foster understands it, takes the physical world to be something whose existence is both logically independent of the human mind and metaphysically fundamental. Foster identifies a number of problems for this realist view, but his main objection is that it does not accord the world the requisite empirical immanence. The form of idealism that he (...) tries to establish in its place rejects the realist view in both its aspects. It takes the world to be something whose existence is ultimately constituted by facts about human sensory experience, or by some richer complex of non-physical facts in which such experiential facts centrally feature. Foster calls this phenomenalistic idealism. He tries to establish a specific version of such phenomenalistic idealism, in which the experiential facts that centrally feature in the constitutive creation of the world are ones that concern the organization of human sensory experience. The basic idea of this version is that, in the context of certain other constitutively relevant factors, this sensory organization creates the physical world by disposing things to appear systematically world-wise at the human empirical viewpoint. Chief among these other relevant factors is the role of God as the one who is responsible for the sensory organization and ordains the system of appearance it yields. It is this that gives the idealistically created world its objectivity and allows it to qualify as a real world. (shrink)

The winning entry in David Stove's Competition to Find the Worst Argument in the World was: “We can know things only as they are related to us/insofar as they fall under our conceptual schemes, etc., so, we cannot know things as they are in themselves.” That argument underpins many recent relativisms, including postmodernism, post-Kuhnian sociological philosophy of science, cultural relativism, sociobiological versions of ethical relativism, and so on. All such arguments have the same form as ‘We have eyes, therefore we (...) cannot see’, and are equally invalid. (shrink)

The article considers, in a historical setting, the links between varieties of nominalism—the extreme nominalism of the Quine-Goodman variety and the trope nominalism current today—and types of idealism. In so doing arguments of various twentieth century figures, including Husserl, Bradley, Russell, and Sartre, as well as a contemporary attack on relations by Peter Simons are critically examined. The paper seeks to link the rejection of realism about universals with the rejection of a mind-independent world —in short, linking nominalism with idealism.

Leemon McHenry has recently written an article which aims "to evaluate the plausibility of Bradley's conception of metaphysics" (McHenry, 1996, p. 159). In the process of this evaluation he draws an important distinction between two kinds of metaphysical project, which he labels "'pure' and 'naturalized' metaphysics" (McHenry, 1996, p. 159). In McHenry's terms, the pure metaphysician approaches his task by appeal to 'pure thinking' alone. Although he defines the method of pure metaphysicians as being a priori in character he is (...) content to put Bradley among their ranks despite this, on the grounds that the latter is concerned to produce a metaphysical account that is "uncontaminated by the results of the empirical sciences" (McHenry, 1996, p. 160). This is contrasted directly with the aim of the naturalised metaphysician who employs the theories of modern science as a general guide to a metaphysics (McHenry, 1996. p. 161) (1). (shrink)

Much of the difficulty in assessing theories of consciousness stems from their advocates not supplying adequate or convincing characterisations of the phenomenon (or data) they hope to explain. Yet, to make any reasonable assessment this is precisely what is required, for it is not as if our ‘pre-theoretical’ intuitions are philosophically innocent. I attempt to reveal, using a recent debate between Chalmers and Dennett as a foil, why, in approaching this topic, we cannot characterise the data purely first-personally or third-personally (...) nor, concomitantly, can we start such investigations using either first-personal or third-personal methods. (shrink)

Unlike standard attempts to address the so-called ‘hard problem’ of consciousness, which assume our understanding of consciousness is unproblematic, this book begins by focusing on phenomenology and is devoted to clarifying the relations between intentionality, propositional content and experience. In particular, it argues that the subjectivity of experience cannot be understood in representationalist terms. This is important, for it is because many philosophers fail to come to terms with subjectivity that they are at a loss to provide a convincing solution (...) to the mind-body problem. In this light the metaphysical problem is revealed to be a product of the misguided attempt to incorporate consciousness within an object-based schema, inspired by physicalism. A similar problem arises in the interpretation of quantum mechanics and this gives us further reason to look beyond physicalism, in matters metaphysical. Thus the virtues of absolute idealism are re-examined, as are the wider consequences of adopting its understanding of truth within the philosophy of science. -/- View SWIF Book forum with precis, commentaries and replies - link below. (shrink)

This paper distinguishes three conceptual problems that attend philosophical accounts of consciousness. The first concerns the problem of properly characterizing the nature of consciousness itself, the second is the problem of making intelligible the relation between consciousness and the ‘physical’, and the third is the problem of creating the intellectual space for a shift in philosophical framework that would enable us to deal adequately with the first two problems. It is claimed that physicalism, in both its reductive and non-reductive forms, (...) fails to deal adequately with either the first or second problem. The diagnosis of this failure is connected to the fact that consciousness cannot be treated in its own terms while being simultaneously fitted into an object-based conceptual schema. In light of this, it is proposed that a Bradleian version of absolute idealism may provide a metaphysical and epistemological framework which would enable us to recognize the conceptual diversity required to treat conscious phenomena on their own terms without forcing us to abandon naturalism. (shrink)

Leemon McHenry has recently written an article which aims "to evaluate the plausibility of Bradley's conception of metaphysics" (McHenry, 1996, p. 159). In the process of this evaluation he draws an important distinction between two kinds of metaphysical project, which he labels "'pure' and 'naturalized' metaphysics" (McHenry, 1996, p. 159). In McHenry's terms, the pure metaphysician approaches his task by appeal to 'pure thinking' alone. Although he defines the method of pure metaphysicians as being a priori in character he is (...) content to put Bradley among their ranks despite this, on the grounds that the latter is concerned to produce a metaphysical account that is "uncontaminated by the results of the empirical sciences" (McHenry, 1996, p. 160). This is contrasted directly with the aim of the naturalised metaphysician who employs the theories of modern science as a general guide to a metaphysics (McHenry, 1996. p. 161). -/- McHenry is right to see Bradley's approach at odds with the kind of naturalised metaphysical accounts of today. Specifically, McHenry's identifies both modest Quinean and the more ambitious Whiteheadian versions of naturalised metaphysics as conflicting with Bradley's account. I have no quarrel with McHenry on this aspect of his analysis. Our disagreement arises when he concludes that "Bradley has been a formidable opponent for naturalized metaphysics, but his own conception of pure metaphysics has shown to be flawed in several important respects." (McHenry, 1996, p. 175). McHenry attempts to establish that today's forms of naturalized metaphysics are preferable to a Bradleyian purist version. I question this conclusion in what follows. (shrink)

The paper is an attempt to take Ingarden’s unfinished critique of idealism one step further. It puts forward a schematic solution to the external-world realist’sproblem of how to explain the fact that we can identify and re-identify fictions, entities that in one sense do not exist. The solution contains three proposals: to accept, with Husserl and Ingarden, that there are universals with intentionality (Husserl’s “intentional essences”), to accept, contra Husserl and Ingarden, an immanent realism for universals, and to accept Ingarden’s (...) view that there is a mode of being distinct from those put forward in traditional metaphysics, that of purely intentional being. Together, these views imply that all the instances of a specific intentional universal are directed towards the same intentional object; be this object a really existing object or a fiction, a purely intentional being. (shrink)

Idealist philosophers have traditionally tried to defend their views by appealing to the claim that nonmental reality is inconceivable. A standard response to this inconceivability claim is to try to show that it is only plausible if one blurs the fundamental distinction between consciousness and its object. I try to rehabilitate the idealistic argument by presenting an alternative formulation of the idealist’s basic inconceivability claim. Rather than suggesting that all objects are inconceivable apart from consciousness, I suggest that it is (...) impossible to conceive of any such object as genuinely existent. This thesis is lent credence by the fact that only in reflective self-consciousness is existence a phenomenological datum. Not only is it the case that we are not ever aware of an object as existing, we do not have a clear understanding of what it would be like to have such an awareness. If this is true, then we have reason to believe that while consciousness exists, the objects of consciousness cannot exist. (shrink)

George Berkeley (1685-1753) put forward a doctrine of mental monism, claiming that reality is fundamentally mental, and the physical world is a derived construct. This paper puts forward a defence of this theory, using a version of Berkeley.

The philosophical mind-body problem, which Chalmers has named the 'Hard Problem', concerns the nature of the mind and the body. Physicalist approaches have been explored intensively in recent years but have brought us no consensual solution. Dualistic approaches have also been scrutinised since Descartes, but without consensual success. Mentalism has received little attention, yet it offers an elegantly simple solution to the hard problem.

The remainder of thi8 work will have a different object from that of the four preceding books, which were contained in the first volume. ...

In this paper, I suggest an outline of a new interpretation of core issues in Spinoza’s metaphysics and philosophy of mind. I argue for three major theses. (1) In the first part of the paper I show that the celebrated Spinozistic doctrine commonly termed “the doctrine of parallelism” is in fact a confusion of two separate and independent doctrines of parallelism. Hence, I argue that our current understanding of Spinoza’s metaphysics and philosophy of mind is fundamentally flawed. (2) The clarification (...) and setting apart of the two doctrines will also put us in a position to present my second major thesis and address one of the more interesting and enduring problems in Spinoza’s metaphysics: how can the attribute of thought be, on the one hand, isomorphic with any other attribute, and yet, on the other hand, be isomorphic with God himself, who has infinitely many attributes? In the second part of the paper, I present Spinoza’s solution to this problem. I argue that the number and order of modes is the same in all attributes. Yet, modes of Thought, unlike modes of any other attribute, have an infinitely-faceted internal structure so that one and the same idea represents infinitely many modes by having infinitely many facets (or aspects). (3) This new understanding of the inner structure of ideas in Spinoza will lead us to my third thesis in which I explain and solve another old riddle in Spinoza’s metaphysics: his insistence on the impossibility of the human mind knowing any of God’s infinite attributes other than Thought and Extension. In the third part, I show some of the major ramifications of my new interpretation and respond to some important objections. In my conclusion I discuss the philosophical importance of my interpretation. I explain why Spinoza could not embrace reductive idealism in spite of the preeminence he grants to the attribute of Thought. I argue that Spinoza is a dualist -- not a mind-body dualist, as he is commonly conceived to be, but rather a dualist of Thought and Being. Finally, I suggest that Spinoza’s position on the mind-body issue breaks with the traditional categories and ways of addressing the subject by suggesting a view which grants clear primacy to Thought without accepting any idealist reduction of bodies to thought. (shrink)

The world we touch, see and hear is not the "real" world -- How the mind transforms the world : the life of the mind -- The time to create the mind's reality -- Priming consciousness -- Mixing and remixing the elements of experience -- The mind plays its little shell games -- A change of pace for a change of mind.

Anthony Brueckner argues that Berkeleyan idealism lacks anti-sceptical force because of the way Berkeley draws the appearance/reality distinction. But Brueckner's case rests on a misunderstanding of Berkeley's view. Properly understood, Berkeleyan idealism does indeed have anti-sceptical force.

Descartes argued that the passions of the soul were immediately felt in the body, as the animal spirits, affected by the movement of the pineal gland, spread through the body. In Leibniz the effect of emotions in the body is a different question as he did not allow the direct interaction between the mind and the body, although maintaining a psychophysical parallelism between them. -/- In general, he avoids discussing emotions in bodily terms, saying that general inclinations, passions, pleasures and (...) pains belong only to the mind or to the soul (NE II, xxi, §72). He is also keen to point out that our passions derive mostly from our bodies. However, like Spinoza (Ethics III, prop. XI, Scholium) he thought that some emotions such as joy can produce pleasures which can be described also in bodily terms. For example, in a short memoir Felicity he says that music can be a pleasure for the ears and symmetry can be a pleasure for the eyes. These more intellectual emotions are actions in the sense that they represent perfection emanating from their source, the absolutely perfect being, that is, God. The feeling of perfection may produce a state of well-being which concerns both the soul and the body. -/- In my paper I will trace instances of Leibniz’s remarks on how these kind of emotions affect the body. I will also discuss the different ways the body gives rise to passions in the soul. My primary source is Nouveaux essais, book II, chapter xx and xxi, but I will also discuss various other writings by Leibniz. (shrink)

Many people regard the mind as something separate from the body. This includes many religious believers, who regard personality and self as attributes of an immortal soul. Some philosophers, relying on logic instead of faith, also have taken the position that the mind is distinct from the body and is not explainable in terms of bodily processes alone. The belief that a person is composed of a mind and a body, with neither one reducible to the other, has traditionally been (...) called dualism. (shrink)

This document consists primarily of an excerpt (chapter 13) from the author’s book From Brain to Cosmos. In that excerpt, the author presents a study of the notion of truth using the concept of subjective fact developed earlier in the book. The author argues that mind-body materialism is compatible with certain forms of metaphysical idealism. The chapter closes with some remarks on relativism with regard to truth. (This document depends heavily upon the concept of subjective fact developed in From Brain (...) to Cosmos. Readers unfamiliar with that concept are strongly advised to read chapters 2 and 3 of From Brain to Cosmos first. See the last page of this document for details on how to obtain those chapters.). (shrink)

Ever since George Berkeley first published Principles of Human Knowledge his metaphysics has been opposed by, among others, some Christian philosophers who allege that his ideas fly in the face of orthodox Christian belief. The irony is that Berkeley’s entire professional career is marked by an unwavering commitment to demonstrating the reasonableness of the Christian faith. In fact, Berkeley’s immaterialist metaphysical system can be seen as an apologetic device. In this paper, I inquire into the question whether Berkeley’s immaterialist metaphysics (...) is congruent with the Christian scriptures. I conclude that not only are Berkeley’s principles consistent with scripture, a case can be made for the claim that certain biblical passages actually recommend his brand of immaterialism. (shrink)

Le argomentazioni presentate in questo volume costituiscono il primo contributo dell’autore al progettato compito di un’analisi e commento completi e puntuali dei principali testi filosofici di Giordano Bruno. Iniziando con il "De umbris idearum" e procedendo con le prime opere in latino, l’autore intende svelare le basi teoretiche della prima speculazione bruniana, destinate ad essere riprese, ampliate ed approfondite nei testi successivi, i "Dialoghi Italiani", così come, in una originale prospettiva atomistica, in quelli latini delle ultime fasi. Il "De umbris (...) idearum" costituisce in questa prospettiva il testo base della difficile e complessa speculazione bruniana: assolutamente lontano – come del resto indicato dalle esplicite affermazioni del filosofo di Nola – dall’impiego pragmatico e retorico della tradizionale arte della memoria, esso piuttosto costruisce progressivamente uno spazio di riflessione di natura ontologica, metafisica e teologica, con influssi sulle considerazioni razionali e naturali. In questo modo l’arte di memoria bruniana diventa la memoria di un arte filosofica civile, la necessità del ricordo di una possibilità del pensiero e della prassi incardinata sulla presenza di un plesso centrale creativo e dialettico, che progressivamente consente l’inserimento della principale innovazione escogitata dalla filosofia bruniana: il concetto (con la relativa prassi) dell’infinito. Direttamente tematizzato nei dialoghi in italiano, il concetto creativo e dialettico dell’infinito bruniano separa progressivamente l’autore nolano dalla tradizione neoplatonico-aristotelica, definendo in tal modo uno schema interpretativo della realtà diverso ed opposto rispetto a quello che – oltre l’apparente rivoluzionarietà della scienza moderna – ha innervato i principali sviluppi della civiltà occidentale moderna e contemporanea. (shrink)

This major new work by David Armstrong is a contribution to recent philosophical discussions about possible worlds. Taking Wittgenstein's Tractatus as his point of departure, Armstrong argues that non-actual possibilities and possible worlds are recombinations of actually existing elements and as such are useful fictions. Included is an extended criticism of the alternative possible worlds approach championed by the American philosopher David Lewis.

Cellular automata (henceforth: CA) are discrete, abstract computational systems that have proved useful both as general models of complexity and as more specific representations of non-linear dynamics in a variety of scientific fields. Firstly, CA are (typically) spatially and temporally discrete: they are composed of a finite or denumerable set of homogeneous, simple units, the atoms or cells. At each time unit, the cells instantiate one of a finite set of states. They evolve in parallel at discrete time steps, following (...) state update functions or dynamical transition rules: the update of a cell state obtains by taking into account the states of cells in its local neighborhood (there are, therefore, no actions at a distance). Secondly, CA are abstract, as they can be specified in purely mathematical terms and implemented in physical structures. Thirdly, CA are computational systems: they can compute functions and solve algorithmic problems. Despite functioning in a different way from traditional, Turing machine-like devices, CA with suitable rules can emulate a universal Turing machine, and therefore compute, given Turing's Thesis, anything computable.... (shrink)

It is commonly assumed that facts would be complex entities made out of particulars and universals. This thesis, which I call Compositionalism, holds that parthood may be construed broadly enough so that the relation that holds between a fact and the entities it ‘ties’ together counts as a kind of parthood. I argue firstly that Compositionalism is incompatible with the possibility of certain kinds of fact and universal, and, secondly, that such facts and universals are possible. I conclude that Compositionalism (...) is false. What all these kinds of fact and universal have in common is a violation of supplementation principles governing any relation that may be intelligibly regarded as a kind of parthood. Although my arguments apply to Compositionalism generally, I focus on recent work by David Armstrong, who is a prominent and explicit Compositionalist. (shrink)