The main aim of this paper is to provide a critical discussion of some key issues concerning the possible-world analysis of fiction. After a review of the most important philosophical questions concerning truth, reference, names and identity, and their bearing on fiction, I outline the possible-world framework, as used by David Lewis (1978) in his analysis, and examine its most important problems. A special interest is granted to the limits of the Lewisian pretense interpretation of fiction that are (...) highlighted by works of cinema. I conclude with an appraisal of the puzzles generated by the attempts to draw borders between and within the worlds of fiction, and emphasize the need for a better mutual understanding of the two perspectives that are essential for a possible-world interpretation of fiction: literary theory and philosophy. (shrink)

The Ideal Worlds objection is an objection that purports to identify a potentially fatal flaw in some of our most influential moral theories: including, among others, rule consequentialism, Kant's Law of Nature Formula of the Categorical Imperative and Scanlonian contractualism. In this article, I offer an account of the objection, a survey of some of the ways defenders of affected theories have sought to avoid it, and the problems that those responses can encounter.

Can we formulate a moral theory that captures the moral significance of patterns of group behaviour we cannot affect through our own action while at the same time avoiding the so-called ‘Ideal Worlds’ objection? In a recent article, Caleb Perl has argued that we can. Specifically, Perl claims that one view that does so is his Patterned View: roughly, you ought to act only in accordance with that set of sufficiently general rules that has optimal moral value (Perl 2021: 98). (...) The Patterned View undoubtedly constitutes a welcome contribution to our existing set of moral theories. However, does it avoid the Ideal Worlds objection? In this article, I argue ‘no’. (shrink)

Linnebo in 2018 argues that abstract objects like numbers are “thin” because they are only required to be referents of singular terms in abstraction principles, such as Hume's principle. As the specification of existence claims made by analytic truths (the abstraction principles), their existence does not make any substantial demands of the world; however, as Linnebo notes, there is a potential counter-argument concerning infinite regress against introducing objects this way. Against this, he argues that vicious regress is (...) avoided in the account of arithmetic based on Hume's principle because we are specifying numbers in terms of the concept of equinumerosity, or its ordinal equivalent. But far from being only a matter for philosophy, this implies a distinct empirical prediction: in cognitive development, the principle of equinumerosity is primary to number concepts. However, by analysing and expanding on the bootstrapping theory of Carey in 2009, I argue in this paper that there are good reasons to think that the development could be the other way around: possessing numerosity concepts may precede grasping the principle of equinumerosity. I propose that this analysis of early numerical cognition can also help us understand what numbers as thin objects are like, moving away from Platonist interpretations. (shrink)

The visual system is known to extract summary representations of visually similar objects which bias the perception of individual objects toward the ensemble average. Although vision plays a large role in guiding action, less is known about whether ensemble representation is informative for action. Motor behavior is tuned to the veridical dimensions of objects and generally considered resistant to perceptual biases. However, when the relevant grasp dimension is not available or is unconstrained, ensemble perception may be informative (...) to behavior by providing gist information about surrounding objects. In the present study, we examined if summary representations of a surrounding ensemble display influenced grip aperture and orientation when participants reached-to-grasp a central circular target which had an explicit size but importantly no explicit orientation that the visuomotor system could selectively attend to. Maximum grip aperture and grip orientation were not biased by ensemble statistics during grasping, although participants were able to perceive and provide manual estimations of the average size and orientation of the ensemble display. Support vector machine classification of ensemble statistics achieved above-chance classification accuracy when trained on kinematic and electromyography data of the perceptual but not grasping conditions, supporting our univariate findings. These results suggest that even along unconstrained grasping dimensions, visually-guided behaviors toward real-world objects are not biased by ensemble processing. (shrink)

Graham Harman writes that the “basic dualism in the world lies…between things in their intimate reality and things as confronted by other things.” However, dualism implies irreconcilable difference; what Harman points to is better expressed as a dyad, where the two components imply one another and interact. This article shows that systems theory has long asserted the fundamental character of Harman’s dyad, expressing it as the union of internal structure and external function, which correspond exactly to what Levi Bryant, (...) characterizing Harman’s views, refers to as the intra-ontic and the inter-ontic, respectively. After interpreting Harman’s dyad in terms of the ontology of systems theory, the article illustrates his dyad with a variety of examples, including conceptions about truth, ethics, value, and intelligence. The structure–function dyad is a spatial conception of a system as an object. It is usefully augmented with a temporal dimension, expressed in a third component or with an additional orthogonal dyad. Adding a temporal dyad to the structure–function dyad joins the idea of an event and/or process to the idea of an object. (shrink)

Husserl’s philosophy of culture relies upon a person’s body being expressive of the person’s spirit, but Husserl’s analysis of expression in Logical Investigations is inadequate to explain this bodily expressiveness. This paper explains how Husserl’s use of “expression” shifts from LI to Ideas II and argues that this shift is explained by Husserl’s increased understanding of the pervasiveness of sense in subjective life and his increased appreciation for the unity of the person. I show how these two developments allow Husserl (...) to better describe the bodily expressiveness that is the source of culture. Husserl’s account of culture is thoroughly intentionalistic, but it does not emphasize thought at the expense of embodiment. Culture originates not in an abstract subjectivity, but by persons’ expressing themselves physically in the world. By seeing how Husserl develops his mature position on bodily expressiveness, we can better appreciate the meaningfulness and the bodily concreteness of cultural objects. (shrink)

There exists broad agreement that participatory, intersubjective engagements in infancy and early childhood, particularly triadic engagements, pave the way for the folk psychological capacities that emerge in middle childhood. There is little agreement, however, about the extent to which early participatory engagements are cognitively prerequisite to the later capacities; and there remain serious questions about exactly how narrative and other language practices can be shown to bridge the gap between early engagements and later abilities, without presupposing the very abilities that (...) they are supposed to account for. A key issue here is the normativity inherent in requesting, proferring and inferring reasons. I point out that normativity is not a property only of linguistic interactions. Normativity and conventionality are also materially instantiated in the artefactual objects that are most frequently implicated in early triadic engagements. The conventional, canonical functions of artefacts may, however, be overlaid in symbolic play by significations rooted in children's experience of blended actual and virtual worlds. Artefactual objects are amplifiers, as well as objects of consciousness. Interwoven with the symbolic forms of language, they co-constitute a specifically human biocultural niche, within and in virtue of which developing human beings become competent folk psychologists. (shrink)

Einar Bohn has argued that principles of composition must be contingent if gunky objects and junky worlds are both metaphysically possible. This paper critically examines such a case for contingentism about composition. I argue that weak mereological universalism, the principle that any two objects compose something, is consistent with the metaphysical possibility of both gunky objects and junky worlds. I further argue that, contra A. J. Cotnoir, the weak mereological universalist can accept a plausible mereological remainder axiom. (...) The proponent of contingent composition will have to look elsewhere for an argument in favor of his position. (shrink)

Outlines a tenable version of a traditional foundationalist account\nof empirical justification and its implications for the justification\nof beliefs about physical or material objects. Presupposing the acceptability\nof other beliefs about physical objects; Concept of a basic belief;\nMetabeliefs about one's own occurrent beliefs; Beliefs about sensory\nexperience.

Chapter 7 provides a noneist account of mathematical and other abstract objects, and of worlds. It then discusses a number of objections, such as that this is just a form of platonism in disguise.

The view that a possible world is an existing abstract object implies that all nonexistent possible individuals have a principle of individuation in terms of existing objects, properties, and relations. However, some individuals of this kind are totally out of this world both in the subjective sense that nobody in this world can pick them out, and in the ontological sense that they would neither be created by assembling or arranging existing bits of matter nor otherwise (...) be generated by existing items. The only acceptable principle of individuation for such nonexistent possibles is that they are individuated by their unexemplified haecceities. (shrink)

While research on object individuation assumes that even very young children are able to perceive objects as particulars, we argue that the results of relevant studies can be explained in terms of feature discrimination. We propose that children start out navigating the world with a feature‐based ontology and only later become able to individuate objects spatiotemporally. Furthermore, object individuation is a cognitively demanding achievement resting on a uniquely human form of enculturation, namely the acquisition of deictic demonstratives. (...) We conclude by outlining empirical expectations for operationalizations of our proposal. (shrink)

Steven French articulates and defends the bold claim that there are no objects in the world. He draws on metaphysics and philosophy of science to argue for structural realism--the position that we live in a world of structures--and defends a form of eliminativism about objects that sets laws and symmetry principles at the heart of ontology.

Following Wiggins’ seminal article, On Being in the Same Place at the Same Time, this article presents the first comprehensive account of the relation of material constitution, an asymmetrical, transitive relation which totally orders distinct ‘entities’ (individuals, pluralities or masses of stuff) which ‘spatially coincide.’ Their coincidence in space is explained by a recursive definition of ‘complete-composition’, weaker than strict mereological indiscernibility, which also explains the variety of logically independent similarities in such cases. This account is ‘analytical’, dealing with ‘putative’ (...) cases in general. The main strategy is to rationally reconstruct Aristotle’s notion of material cause. It is developed more fully with a theory of how to justify admitting generable and perishable things into the natural world, in The Kinds of Things: A Theory of Personal Identity Based on Transcendental Argument (Open Court, 1996). (shrink)

A number of philosophers have argued in favour of the Dependency Thesis: if a subject sensorily imagines an F then he or she sensorily imagines from the inside perceptually experiencing an F in the imaginary world. They claim that it explains certain important features of imaginative experience, in brief: the fact that it is perspectival, the fact that it does not involve presentation of sensory qualities and the fact that mental images can serve a number of different imaginings. I (...) argue that the Dependency Thesis is false and that, in any event, it does not have the explanatory credentials claimed for it. Some of the features of imaginative experience are incorrectly specified, namely the absence of presentation of sensory qualities. With a more precise idea of what we need to explain, I argue that the explanation should proceed by noting that imagination and perception have phenomenally similar contents and that this is to be explained in terms of the similar kinds of representations in play. I trace the consequences of my discussion for disjunctivist theories of perception, Berkeleian Idealism and the characterisation of knowing what an experience is like. (shrink)

The study of metaphysical possibility involves two central questions: What are possible worlds? Is there an empty possible world? In looking at the first question we consider the different accounts of possible worlds—Lewisian realism, ersatzism, etc. In looking at the second question we consider the discussions of metaphysical nihilism, the modal ontological arguments, etc. In this paper I am drawing these two questions together in order to show how the position we hold on one of these issues affects the (...) position we should hold on the other. (shrink)

Human cognitive acts are directed towards objects extended in space of a wide range of different types. What follows is a new proposal for bringing order into this typological clutter. The theory of spatially extended objects should make room not only for the objects of physics but also for objects at higher levels, including the objects of geography and of related disciplines. It should leave room for different types of boundaries, including both the bona fide (...) boundaries which we find in the physical world and the fiat (or human-demarcation-induced) boundaries with which much of geography has to deal. Two distinct axiomatic theories of boundaries are accordingly presented, and the need for both is examined in some detail. The resultant dual framework is shown to have application above all for our understanding of issues involving contact, division, and separation, issues which have posed serious difficulties for the ontological theories of boundaries that have been proposed hitherto. (shrink)

The view that a possible world is an existing abstract object implies that all nonexistent possible individuals have a principle of individuation in terms of existing objects, properties, and relations. However, some individuals of this kind are totally out of this world both in the subjective sense that nobody in this world can pick them out, and in the ontological sense that they would neither be created by assembling or arranging existing bits of matter nor otherwise (...) be generated by existing items. The only acceptable principle of individuation for such nonexistent possibles is that they are individuated by their unexemplified haecceities. (shrink)

Classical physics is about real objects, like apples falling from trees, whose motion is governed by Newtonian laws. In standard quantum mechanics only the wave function or the results of measurements exist, and to answer the question of how the classical world can be part of the quantum world is a rather formidable task. However, this is not the case for Bohmian mechanics, which, like classical mechanics, is a theory about real objects. In Bohmian terms, the (...) problem of the classical limit becomes very simple: when do the Bohmian trajectories look Newtonian? (shrink)

David Lewis holds that a single possible world can provide more than one way things could be. But what are possible worlds good for if they come apart from ways things could be? We can make sense of this if we go in for a metaphysical understanding of what the world is. The world does not include everything that is the case—only the genuine facts. Understood this way, Lewis's “cheap haecceitism” amounts to a kind of metaphysical anti-haecceitism: (...) it says there aren't any genuine facts about individuals over and above their qualitative roles. (shrink)

I argue that metaphysical views of material objects should be understood as 'packages', rather than individual claims, where the other parts of the package include how the theory addresses 'recalcitant data', and that when the packages meet certain general desiderata - which all of the currently competing views *can* meet - there is nothing in the world that could make one of the theories true as opposed to any of the others.

In this paper we extend Heidi Hurd’s “correspondence thesis” to the termination of pregnancy debate and argue that the same reasons that determine the permissibility of abortion also determine the justifiability of acts involving conscientious objection against its performance. Essentially, when abortion is morally justified, acts that prevent or obstruct it are morally unjustified. Therefore, despite conscientious objection being legally permitted in some global south countries, we argue that such permission to conscientiously object would be morally wrong in cases of (...) morally justifiable termination of pregnancy. After presenting and defending our “correspondence argument” we suggest that conscientious objection should be denied as a matter of public health policy in developing counties, even in cases where adequate referral services are possible. Towards the end, we extend our argument to midwives, nurses, and prospective students in the field. Given their essential position in resource‐poor contexts; they too have no claim to conscientious objection. (shrink)

According to principles of probability coordination, such as Miller's Principle or Lewis's Principal Principle, you ought to set your subjective probability for an event equal to what you take to be the objective probability of the event. For example, you should expect events with a very high probability to occur and those with a very low probability not to occur. This paper examines the grounds of such principles. It is argued that any attempt to justify a principle of probability coordination (...) encounters the same difficulties as attempts to justify induction. As a result, no justification can be found. (shrink)

The one-world interpretation of Kant's idealism holds that appearances and things in themselves are, in some sense, the same things. Yet this reading faces a number of problems, all arising from the different features Kant seems to assign to appearances and things in themselves. I propose a new way of understanding the appearance/thing in itself distinction via an Aristotelian notion that I call, following Kit Fine, a ‘qua-object.’ Understanding appearances and things in themselves as qua-objects provides a clear (...) sense in which they can be the same things while differing in many of their features. (shrink)

There are remarkable parallels between Hume and Nagarjuna in their denial of substantiality and independence in objects and their subsequent attitude toward our ordinary world. Acknowledging a deep-rooted human tendency to take objects as independent entities, they both argue that there is nothing intrinsic in those objects that make them unitary and independent, and that those characters are, strictly speaking, merely fictitious, mental constructs. They nonetheless affirm the existence of our ordinary world as real. Although (...) their main purposes of the philosophical inquiry are different (epistemological for Hume, and soteriological for Nagarjuna), their accounts of the nature of our world allow us to accept it in the way we ordinarily believe with the deeper understanding of it. It is only in this world where we think, act, and interact with others that an epistemology grounded in human sentiment and experience (for Hume) or humans liberation (for Nagarjuna) is possible. (shrink)

In this paper I am discussing the concept of “objective world”, its hope and aim as vigorously presented in Husserl’s famous discourse of the Fifth Meditation. In this manner, the first part of my work focuses on Husserl’s intentionality as knowledge of the “I” or “my ego” as my primordial identity, in relation to “my culturalcommunity” as its primordial one, too. The thesis will then develop into “intersubjectivity” in which “the other” and his “cultural community” as primordially constituted are (...) objective to be fully understood in terms of synthetic knowledge; namely through psychological, cultural, historical and social forms and contents. The second part of my paper takes off from where transcendental phenomenology is grounded to look into the problem of Globalization and questions of value. If the first part followed Husserlian theoretical investigations, sometimes called interpretive philosophy to hopefully acquire universal principles, the second onecan be called practical doctrine, which studies cases presented by a number of specialists who focus on praxis and consequences of Globalization – a theme for economic concerns, but inherently it affects the stability of the community of mankind. This new world order overtly and covertly critiques traditional concepts of nation and culture as it redefines democratic concept, coming home to human rights. Its challenge has been already about the doubts and contradictoriness of “values” in broadest and “reduction” sense. OBJECTIVITY as a noun, and OBJECTIVE, an adjective and noun are terminologies of extremely complicated shades of meaning in Husserl’s Cartesian Meditations, particularly in the fifth one where such terms are used interchangeably to fit the concept of intersubjective Nature; which I will explore and further put it in current economic and political drive to Globalization. In this regard my theme will deal simultaneously with both the critique of Husserlian thought and neo-liberalism (liberal democracy), a twist of democracy for preserving capitalism in what is called a new world order by ordinance and defense of Imperialism as well as the states that so desire to join the world market. (shrink)

It is generally agreed that empathy can give us knowledge about others. However, the potential use of empathy as a tool to learn about features of objects in the world more generally, as opposed to learning only about others’ internal states, has not been discussed in the literature. In this paper I make the claim that empathy can help us learn about evaluative features of objects in the world. I further defend this claim by comparing empathy (...) to testimony. Then I present and respond to two possible objections to this analogy. (shrink)

In his final monograph, Barry Stroud argues that certain fundamental concepts, like the concept of causation, are not only indispensable to any thought of an objective, independent world, but that they are also, therefore, invulnerable to skeptical attack. Given some assumptions about thought and objectivity, this leads him into the following metaphysical aporia: We can neither metaphysically establish that the objective, independent world is as we must think of it nor that it is not that way. I will (...) argue that the source of this aporia is a notion of objectivity in terms of the complete independence from any relation to thought whatsoever. This is a notion never explicitly argued for, as Stroud does not identify its origin. I then argue that a Kantian notion of objectivity can both be justified by tracing it to its origin in what we understand thinking and perceiving to be and dissolve Stroud’s aporia. If there is a way we must think of the world, and if we conceive of this world as completely independent of any relation to thought, then it is indeed hard to see why the world would agree with the fundamental form of thought. But if the objective, independent world is instead conceived of in relation to thought rather than independently of it and in terms of the independence from subjects and acts of thinking and perceiving, then it becomes intelligible how the world in relation to thought can agree with our fundamental concepts, while the world independent of any relation to thought might not. (shrink)

An under-explored intermediate position between traditional materialism and traditional idealism is the view that although the spatiotemporal world is purely material, minds nonetheless have a metaphysically special place in it. One way this can be is via a special role that subjects have in the metaphysics of material objects. Some metaphysical aspect of material objects might require the existence of subjects. This would support that minds must exist if material objects exist and thus that a mindless (...) material world is impossible. This view, labeled the subjectivity thesis by Anton Friedrich Koch, was defended by him with an intriguing, purely metaphysical argument connected to the individuation of material objects in space and time. The present paper hopes to make progress on assessing the viability of such a position. It starts by critically examining Koch's argument for the subjectivity thesis, as well as similar arguments that give minds a central place in the metaphysics of material objects via considerations about identity and difference. It then compares these ideas to similar ones in the philosophy of time, and concludes with an outlook on whether such a position is viable and what needs to be done to fill the gaps unearthed along the way. (shrink)

Commonsense metaphysics populates the world with an enormous variety of macroscopic objects, conceived as being capable of persisting through time and undergoing various changes in their properties and relations to one another. Many of these objects fall under J. L. Austin’s memorable description, “moderate-sized specimens of dry goods.” More broadly, they include, for instance, all of those old favourites of philosophers too idle to think of more interesting examples—tables, books, rocks, apples, cats, and statues. Some of them (...) are natural objects, such as rocks, apples, and cats. Some are artefacts, such as tables, books, and statues. Some are living things, such as apples and cats. Some are inanimate things, such as tables, books, rocks, and statues. To such a list we could add much larger natural objects, such as planets and stars, as well as much smaller ones barely visible to the naked eye, such as mites and pollen grains. Telescopes and microscopes enable us to extend the scale further in both directions, to include such things as galaxies and microbes. To call into question the existence of all or any of these things would appear to be an extravagance of the sort that only a philosopher could indulge. Until fairly recently in the history of philosophy, however, the only way in which their existence would have been called into question was in the context of the debate between realism and idealism. Idealism calls their existence into question by questioning the existence of an “external world” as such, proposing instead that only minds and their experiences exist. What is much more recent is the suggestion that, although there is an external world of entities existing in space and time, it is not in fact populated by most, or perhaps even by any, of the objects recognized by common sense. Instead, it is suggested, the world is populated by submicroscopic entities of a highly esoteric kind best understood by theoretical physicists—entities which may not even qualify as “objects” in anything like the familiar sense because, quite possibly, they should not be thought of as having precise spatiotemporal locations or as persisting over time and through processes of qualitative change. Let us call these putative entities ‘atoms’, without prejudice as to whether they conform to the descriptions currently favoured by physicists in speaking of what they call ‘atoms’. In other words, let us use ‘atom’ as a place-holder for whatever kind or kinds of entities an ideal or completed physics would postulate as the “ultimate” constituents, as opposed to infinitely descending levels of ever more fine-grained physical structure, but let us set aside dispute over these alternatives for the time being, if only because we have little idea as to how to settle it. (shrink)

Merleau-Ponty's views are the fruit of the method of "phenomenological description," in part taken over from Husserl. This consists of describing our "original" experience of the world without assuming the truth or validity of any statements we may know about it. Unlike the Cartesian method it does not mean that we should suppose false those statements we know are true, but rather that we should "put these in brackets," or "suspend" their rel- evance, consider them as void of ontological (...) implications. For only if we succeed in doing so, the theory runs, will our description be "pure" or "presuppositionless," free of prejudice with respect to the nature of that which we are trying to describe. In doing the phenomenology of perception, then, we must deliberately discount all that we may chance to know about the "how" or the "why" of perception. In describing our "original" experience of the world, we must not let ourselves be influenced by any empirical or philosophical theory of perception, any hypotheses concerning its nature, causes, or physiological or other underlying processes involved. To cite a concrete example, in describing our perception of some visible scene we must discount anything we may chance to know about light rays impinging upon the retina, etc. Failure to do so might lead to a description not of that which we do see, but that which, given the retinal image, we ought to see, i.e., that portion of the visual scene, light rays from which, impinge upon our retina, and not the visual scene itself. Here, then, is one of the reasons for which we must go through a process of "phenomenological reduction" with respect to our knowledge of the world. But it is not the only reason. In fact the interdict goes further. We are not even entitled to use the usual categories of everyday or scientific descriptive discourse. Nor should we use the language of sense data, or that of the introspectionists. For both of these "presuppose" the validity of some at any rate of its categories. Both rest in the last resort on some theory regarding the nature of the "objective" world, or of our experience of it. (shrink)

Russell once said that “Vagueness and precision alike are characteristics which can only belong to a representation, of which language is an example. They have to do with the relation between a representation and that which it represents. Apart from representation, whether cognitive or mechanical, there can be no such thing as vagueness or precision; things are what they are, and there is an end of it” (1923). In other words, expressions like ontological vagueness (and even ontological precision) are category (...) mistakes and therefore make no sense. Half a century later, as the view began to emerge that some vagueness could be intelligibly ascribed to the world, Dummett opined that “It is not apparently absurd to suppose ... that the physical world is in itself such that the most precise description of it that even omniscience would yield might yet involve the use of expressions having some degree of vagueness” (1981). Evans had already questioned the idea of worldly vagueness, arguing that it was inconsistent (1978). A quarter of a century later, however, many papers had been written in defense of the intelligibility and possibility of this once nonsense and then contradictory claim. This chapter is one of them, albeit from a different viewpoint. The aim of this chapter is twofold: firstly, to consider the intelligibility of vague ontology, and secondly, to discuss the most famous argument against vague ontology, i.e., Evans’ argument. To this end, in Sect. 11.2 we present some commonsensical considerations on vague ontology. In Sect. 11.3, we look at some supervaluationist theories and the kind of vague ontology they accommodate before arguing that this kind of ontology is inconsistent with commonsense. Section 11.4 outlines a version of supervaluationism that can accommodate the commonsensical considerations discussed in Sect. 11.2. The outlined view is an ontological variation of Kit Fine’s characterization of vagueness as incompleteness (1975). It will be argued that the view is more effective than other versions of supervaluationism at accommodating commonsensical and metaphysical considerations. In the following section, we consider vague identity. Based on the view outlined in Sect. 11.4, there may be vague identity in some special cases. In Sect. 11.6 we focus on Evans’ argument and argue that it can be blocked in the first step. (shrink)

This book is about matter. It involves our ordinary concept of matter in so far as this deals with enduring continuants that stand in contrast to the occurrents or processes in which they are involved, and concerns the macroscopic realm of middle-sized objects of the kind familiar to us on the surface of the earth and their participation in medium term processes. The emphasis will be on what science rather than philosophical intuition tells us about the world, and (...) on chemistry rather than the physics that is more usually encountered in philosophical discussions. It is the everyday science of matter characterised by differences of chemical substance that constitutes individuated macroscopic bodies of geological and biological complexity—the continuous matter of macroscopic theory and described by mass terms. -/- The discussion might be characterised as descriptive metaphysics, being content, to paraphrase Strawson’s use of the term, to describe the structure of our scientific thought about the actual world. The method in the central chapters dealing with the nature of matter will be to pursue key steps in the historical development of scientific thought about chemical substance and related concepts with a view to tracing the emergence of a systematic ontological interpretation. Aristotle’s and the Stoics’ discussions of elements and mixtures, based on a continuous view of matter, bear some resemblance to modern, macroscopic conceptions and therefore have some interest as precursors to modern views as well as being of conceptual interest in their own right. Some of the issues they raised are still reflected in modern discussions, despite the considerable increase in complexity of the subject. Other ideas, such as the intimate connection between what modern science distinguishes as substance and phase, maintained their grip on the understanding of matter until the end of the eighteenth century. These are some of the important aspects of the properties of matter that have been neglected by linguistic concerns that have dominated the recent study of mass terms and which the present study seeks to redress. It will be of interest to see how the bounds of possibility are delimited by the laws governing the appropriate use of concepts refined for the purpose of describing the behaviour of matter. But the concern with modality will not stretch to venturing into the realms of metaphysical possibility governed by philosophical speculation about individual essences and underlying natures. -/- Like many contemporary discussions of material objects, this one relies heavily on mereology. Unlike several such discussions, this one adheres to the classical principles of mereology governing the usual dyadic relations of part, overlapping, etc. and the operations of sum, product and difference. These principles apply to the mereological structure of regions of space, intervals of time, processes and quantities of matter. Material objects that gain and lose matter are not understood to gain and lose parts and don’t call for a modification of the classic dyadic mereological relations to triadic relations with the introduction of a third term referring to time. Rather, a distinction is drawn between quantities of matter, which don’t gain or lose parts over time, and individuals, which are typically constituted of different quantities of matter at different times. The proper treatment of the temporal aspect of the features of material objects is a central issue in this book. The topics falling under this heading are addressed by investigating the conditions governing the application of predicates relating time and other entities. Of particular interest here are relations between quantities of matter and times expressing substance kind, phase and mixture. (shrink)

According to classical physics particles are basic building blocks of the world. These classical particles are distinguishable objects, individuated by unique combinations of physical properties. By contrast, in quantum mechanics the received view is that particles of the same kind are physically indistinguishable from each other and lack identity. This doctrine rests on the quantum mechanical symmetrization postulates together with the “factorist” assumption that each single particle is represented in exactly one factor space of the tensor product Hilbert (...) space of a many-particle system. Even though standard in theoretical physics and the philosophy of physics, the assumption of factorism and the ensuing indistinguishability of particles are problematic. Particle indistinguishability is irreconcilable with the everyday meaning of “particle”, and also with how this term is used in the practice of physics. Moreover, it is a consequence of the standard view that identical quantum particles remain indistinguishable even in the classical limit, which makes a smooth transition to the classical particle concept impossible. Lubberdink and Dieks and Lubberdink have proposed an alternative conception of quantum particles that does not rely on factorism and avoids these difficulties. We further explain and discuss this alternative framework here. One of its key consequences is that particles in quantum theory are not fundamental but emergent; another that once they have emerged, quantum particles are always physically distinguishable and thus possess a physically grounded identity. (shrink)

Suppose that a material object is gunky: all of its parts are located in space, and each of its parts has a proper part. Does it follow from this hypothesis that the space in which that object resides must itself be gunky? I argue that it does not. There is room for gunky objects in a space that decomposes without remainder into mereological simples.

A proof is offered according to which if a psychological premise held by many diverse philosophers through the centuries to the effect that any represented physical property will be held to be exemplified unless some conflicting physical property is simultaneously represented is considered to be necessary, then there are physical objects in every possible world.

Philosophers sometimes give arguments that presuppose the following principle: two theories can fail to be empirically equivalent on the sole basis that they present different “thick” metaphysical pictures of the world. Recently, a version of this principle has been invoked to respond to the argument that composite objects are dispensable to our best scientific theories. This response claims that our empirical evidence distinguishes between ordinary and composite-free theories, and it empirically favors the ordinary ones. In this paper, I (...) ask whether this response to the dispensability argument is tenable. I claim that it is not. This is because it presupposes an indefensible thesis about when two empirical consequences are distinct or the same. My argument provides some insight into what our empirical consequences are, and I conclude that empirical evidence is radically metaphysically neutral. This gives us some insight into the significant content of our scientific theories—the content that a scientific realist is committed to—and I show how this insight relates to questions about theoretical equivalence more broadly. (shrink)