Drawing upon Lynne Baker's idea of the person derivatively possessing the properties of a constituting organism, I argue that even if persons aren't identical to living organisms, they can each literally die a biological death. Thus we can accept that we're not essentially organisms and can still die without having to admit that there are two concepts and criteria of death as Jeff McMahan and Robert Veatch do. Furthermore, we can accept James Bernat's definition of "death" without having to insist, (...) as he does, that persons are identical to organisms or that persons can only die metaphorical deaths. (shrink)

Animalism offers a more attractive account of the human person than the Embodied Mind Account. If people are not animals, but small proper parts of animals, then there is a threat of spatially coincident thinkers. This will likely have to be avoided at the cost of the sparsest of ontologies, one in which there are no larger entities that can become reduced to the size of the brain or cerebrum-size thinker. This will be a rather implausible ontology as such thinkers (...) will not fit well into the natural world, meet traditional independence or unity criteria for being substances, nor provide a compositional principle with causal glue. (shrink)

Elselijn Kingma maintains that Christopher Boorse and other naturalists in the philosophy of medicine cannot deliver the value-free account of disease that they promise. Even if disease is understood as dysfunction and that notion can be applied in a value-free manner, values still manifest themselves in the justification for picking one particular operationalization of dysfunction over a number of competing alternatives. Disease determinations depend upon comparisons within a reference class vis-à-vis reaching organism goals. Boorse considers reference classes for a species (...) to consist in the properties of age and sex and organism goals to comprise survival and reproduction. Kingma suggests that naturalists are influenced by value judgments and may rely upon implicit assumptions about disease in their choice of reference classes and goals to determine which conditions are diseased. I argue that she is wrong to claim that these choices cannot be defended without arguing in a circular manner or making certain arbitrary or value-driven judgments. (shrink)

The paper comprises an attempt on the part of the author to understand what hylomorphism is, both in its original Aristotelian guise, and in recent work by philosophers who defend what they call hylomorphism. Two species or strands of hylomorphism are identified and discussed. Universals, essences, and substantial and accidental forms make cameo appearances, and the implications of an Aristotelian ontology of stuffs are explored.

Simon Saunders argues that, although distinct objects must be discernible, they need only be weakly discernible (Saunders 2003, 2006a). I will argue that this combination of views is unmotivated: if there can be objects which differ only weakly, there can be objects which don’t differ at all.

In his Material Beings, Peter van Inwagen distinguishes two questions about parthood. What are the conditions necessary and sufficient for some things jointly to compose a whole? What are the conditions necessary and sufficient for a thing to have proper parts? The first of these, the Special Composition Question (SCQ), has been widely discussed, and David Lewis has argued that an important constraint on any answer to the SCQ is that it should not permit borderline cases of composition. This is (...) a far-reaching claim, since many plausible-seeming accounts of composition do permit borderline cases. Ned Markosian has recently directed our attention to the second, the neglected Inverse Special Composition Question (ISCQ). I will argue that those who accept Lewis’s constraint on answers to the SCQ should accept an analogous constraint on answers to the ISCQ, and I will discuss the effects of such a constraint. (shrink)

We do not fully understand Hume’s account of space if we do not understand his view of determinations of extension, which is too much ignored a topic. In this paper, I argue for an interpretation that determinations of extension are unities in Hume’s view: single beings in addition to their components. This realist reading is reasonable on both textual and philosophical grounds. There is strong textual evidence for it and no textual reason to reject it. Realism makes perfect sense of (...) the metaphysics of determinations of extension along Humean lines and Hume’s view of spatial relations. (shrink)

When the meta-philosophies of Nominalism and Realism are compared, it is often said that Nominalism is motivated by a methodology of ontological economy, while Realism would be motivated by an appeal to Common Sense. In this paper, I argue that this association is misguided. After briefly comparing the meta-philosophy of Common Sense and the meta-philosophy of economy, I show that the core motivation in favour of Realism relies in fact in a principle of economy which violates the methodology of Common (...) Sense. I conclude that Common Sense philosophers should endorse Nominalism. (shrink)

I argue that relations between non-identical times, such as the relations, earlier than, later than, or 10 seconds apart, involve contradiction, and only co-temporal relations are non-contradictory, which would leave presentism the only non-contradictory theory of time. The arguments I present are arguments that I have not seen in the literature.

When a debate seems intractable, with little agreement as to how one might proceed towards a resolution, it is understandable that philosophers should consider whether something might be amiss with the debate itself. Famously in the last century, philosophers of various stripes explored in various ways the possibility that at least certain philosophical debates are in some manner deficient in sense. Such moves are no longer so much in vogue. For one thing, the particular ways they have been made have (...) themselves undergone much critical scrutiny, so that many philosophers now feel that there is, for example, a Quinean response to Carnap, a Gricean reply to Austin, and a diluting proliferation of Wittgenstein interpretations.2 Be that as it may,3 there do of.. (shrink)

Identifying plausible truthmakers for negative truths has been a serious and perennial problem for truthmaker theory. I argue here that negative truths are indeed made true but not in the way that positive truths are. I rely on a distinction between “existence-independence” and “variation-independence” drawn by Hoffman and Horvath to characterize the unique form of dependence negative truths exhibit on reality. The notion of variation-independence is then used to motivate a principle of truthmaking for contingent negative truths.

There has been a lot of discussion recently regarding abstract artifacts and how such entities (e.g., fictional characters like Sherlock Holmes, and mythological planets like Vulcan), if they indeed exist, could possibly be our creations. One interesting aspect of some of these debates concerns the extent to which creative intentions play a role in the creation of artifacts generally, both abstract and concrete. I here address the creation of concrete artifacts in particular. I ultimately defend a Brock-inspired, heterodox view on (...) which creative intentions are not at all necessary for the creation of concrete artifacts. A concrete artifact is just a hunk of matter having a certain configuration owing to human activity and, given that configuration, is disposed to participate in other human activities. (shrink)

I discuss Aristotle’s opening argument against Platonic Forms in _Metaphysics_ A.9, ‘the Razor’, which criticizes the introduction of Forms on the basis of an analogy with a hypothetical case of counting things. I argue for a new interpretation of this argument, and show that it involves two interesting objections against the introduction of Forms as formal causes: one concerns the completeness and the other the adequacy of such an explanatory project.

On the grounds that there are no mereological composites, mereological nihilists deny that ordinary objects exist. Even if nihilism is true, however, I argue that tables and chairs exist anyway: for I deny that ordinary objects are the mereological sums the nihilist rejects. Instead, I argue, ordinary objects have a different nature; they are arrangements, not composites. My argument runs as follows. First, I defend realism about ordinary objects by showing that there is something that plays the role of ordinary (...) objects in perception and discourse, and that ordinary objects are whatever plays this role. Next, I argue that it is arrangements that play this role. It follows that ordinary objects exist- even if mereological nihilism is true. (shrink)

What is it for an individual thing in the natural world—a rock, a mouse, a family or a planet—to be made of other things—crystals, organs, animals, soil, water, or dirt? Rocks, mice, families and planets are composites, but how are we to understand the relation that holds between these composites and their component parts? My aim is to offer a new account of this relation, which I shall call corporeal composition. A central claim of my account is that corporeal composition (...) is grounded in causal relations between components. I will show how this claim, combined with a minimalist approach to causation—that causation is not one thing, but many—entails a position I call compositional minimalism—that composition is not one thing, but many. (shrink)

Let a priority micro pluralist be someone who holds that particles or other microscopic objects are fundamental. Rivals to priority micro pluralism include priority monism (the view that the only fundamental concrete object is the entire cosmos) as well as the Aristotelian view that some ordinary macroscopic objects are fundamental. Although priority micro pluralism is popular, I show that it encounters great difficulty in even the most straightforward cases. For example, this tennis ball is spherical; how is this fact to (...) be grounded in facts about the microscopic realm? I consider a number of possible answers to this question. The most promising proposals attempt to exploit the close connection emphasized by Kripke between objects and their original material constituents. I argue that these proposals fail. I conclude that it is worth seriously considering alternatives to this sort of pluralism. (shrink)

Many philosophers have thought that the problem of personal identity over time is not metaphysically deep. Perhaps the debate between the rival theories is somehow empty or is a ‘merely verbal dispute’. Perhaps questions about personal identity are ‘nonsubstantive’ and fit more for conceptual analysis and close attention to usage than for theorizing in the style of serious metaphysics, theorizing guided by considerations of systematicity, parsimony, explanatory power, and aiming for knowledge about the objective structure of the world. I discuss (...) a thesis about consciousness according to which there are perfectly natural phenomenal properties. Although I do not argue for this thesis, I believe that it is plausible, whether or not physicalism is true. Given the thesis, there are deep, substantive questions about which individuals or pluralities instantiate the relevant phenomenal properties. Equally substantive questions can then be asked about the duration and other spatiotemporal characteristics of those individuals or pluralities, both in actual cases and in hypothetical puzzle cases adapted from the personal identity literature. I suggest that, at least prima facie, these questions interact with our future-directed egoistic concern in much the same way that the personal identity question is often thought to. As a slogan: “you give me substantive, determinate facts about consciousness; I give you substantive, determinate facts about personal identity”. (shrink)

The relationship between alethic modality and indeterminacy is yet to be clarified. A modal argument—an argument that appeals to alethic modality—against vague objects given by Joseph Moore offers a potential clarification of the relationship; it is proposed that there are cases for which the following holds: if it is indeterminate whether A = B then it is possible that it is determinate that A = B. However, the argument faces three problems. The problems remove the argument’s threat against vague objects (...) and prompt a fuller scrutiny of Moore’s proposed relationship between alethic modality and indeterminacy. Such a scrutiny offers valuable lessons concerning the justification for claims of indeterminate identity, appeals to identity principles in contexts involving both alethic modality and indeterminacy, and how to identify the form of Gareth Evans’s argument against vague objects in other arguments. (shrink)

A context-shifting example involves a putatively non-ambiguous, non-elliptical, non-indexical declarative sentence, some distinct utterances of which differ in truth value despite sameness of place, time, surrounding objects, and other physical factors. Charles Travis has spawned a large literature by arguing that such examples undermine compositional truth-conditional semantics. After explaining how prior responses to Travis’s examples fail in the metaphysical details, the present essay develops a new approach that treats a wide range of subject terms as disguised indexicals sensitive to mereological (...) structure. (shrink)

A mereological structure is junky if and only if each of its elements is a proper part of some other. The young literature on junk has focused on junky worlds and whether they are counterexamples to unrestricted composition. The present note defends the possibility of junky structures that are not worlds. This possibility complicates a recent attempt in the literature to render junk consistent with a weakened form of unrestricted composition. The upshot is that junky non-worlds threaten the weakened form (...) of unrestricted composition as much as junky worlds threaten the traditional version. (shrink)

The debate on personal persistence has been characterized by a dichotomy which is due to its still Cartesian framwork: On the one side we find proponents of psychological continuity who connect, in Locke’s tradition, the persistence of the person with the constancy of the first-person perspective in retrospection. On the other side, proponents of a biological approach take diachronic identity to consist in the continuity of the organism as the carrier of personal existence from a third-person-perspective. Thus, what accounts for (...) someone’s persistence over time, is the continuity of his mind on the one hand, and the continuity of his body on the other. In contrast to those views, the paper intends to show that bodily existence represents the basis of selfhood across time, both as the continuity of the experiential self and as the continuity of the autopoietic organism. On the one hand, the lived body conveys a continuity of the self from a first-person perspective, namely a pre-reflective feeling of sameness or a felt constancy of subjectivity. Moreover, an analysis of awakening and sleep shows that there is a continuous transition from full wakefulness to periods of deep sleep which may thus not be regarded as a complete interruption of subjective experience. On the other hand, this constancy converges with the continuity of the organismic life process as conceived from a third-person perspective. Thus, the experiential self of bodily subjectivity and the autopoietic self of the living organism should be regarded as two aspects of one and the same life process. Finally, the lived body also exhibits a specific form of memory that results from the continual embodiment of existence: it consists of all the affinities, capacities and experiences, which a person has acquired throughout his life. Thus, it provides a continuity of self that must not be actively produced through remembering, but rather integrates the person’s entire past in his present being and potentiality. (shrink)

In ‘Against fictional realism’ Anthony Everett argues that fictional realism leads to indeterminate identity. He concludes that we should reject fictional realism. Everett’s paper and much of the ensuing literature does not discuss what exactly fictional characters are. This is a mistake. I argue that some versions of abstract creationism about fictional characters lead to indeterminate identity, and that some versions of Platonism about fictional characters lead only to indeterminate reference. In doing so I show that Everett’s argument poses a (...) more pressing problem for abstract creationism than for Platonism. The general lesson is that fictional realists should think more about the ontology of fictional characters in order to discern whether they are committed to indeterminate identity. (shrink)

In Parts of Classes David Lewis argued that mereology is ‘ontologically innocent’, mereological notions not incurring additional ontological commitments. Unfortunately, though, Lewis’s argument for this is not fully spelled out. Here we use some formal results concerning translations between formal languages to argue for the ontological innocence of mereology directly.

In the region where some cat sits, there are many very cat-like items that are proper parts of the cat (or otherwise mereologically overlap the cat) , but which we are inclined to think are not themselves cats, e.g. all of Tibbles minus the tail. The question is, how can something be so cat-like without itself being a cat. Some have tried to answer this “Problem of the Many” (a problem that arises for many different kinds of things we regularly (...) encounter, including desks, persons, rocks, and clouds) by relying on a mereological maximality principle, according to which, something cannot be a member of a kind K if it is a large proper part of, or otherwise greatly mereologically overlaps, a K. It has been shown, however, that a maximality constraint of this type, i.e. one that restricts mereological overlap, is open to strong objections. Inspired by the insights of, especially, Sutton and Madden, I develop a type of functional-maximality principle that avoids these objections (and has other merits), and thereby provides a better answer to the Problem of the Many. (shrink)

Priority Theory is an increasingly popular view in metaphysics. By seeing metaphysical questions as primarily concerned with what explains what, instead of merely what exists, it promises not only an interesting approach to traditional metaphysical issues but also the resolution of some outstanding disputes. In a recent paper, Louis deRosset argues that Priority Theory isn’t up to the task: Priority Theory is committed to there being explanations that violate a formal constraint on any adequate explanation. This paper critically examines deRosset’s (...) challenge to Priority Theory. We argue that deRosset’s challenge ultimately fails: his proposed constraint on explanation is neither well-motivated nor a general constraint. Nonetheless, lurking behind his criticism is a deep problem for prominent ways of developing Priority Theory, a problem which we develop. (shrink)

Peter van Inwagen has in recent decades made significant and influential contributions to metaphysics. In his Material Beings he advanced a novel ontology according to which chairs and other medium-sized dry goods don’t really exist. He went on to make important contributions to metaontology. Parts of his Ontology, Identity, and Modality and Existence: Essays in Ontology defend a broadly Quinean conception of existence questions and how to address them. I argue that the metaontology articulated in those later works is in (...) fact inconsistent with his defense of his ontology advanced in his earlier work. (shrink)

Several have denied that there is, specifically, a criterion of identity for persons and some deny that there are, for any kind, diachronic criteria of identity. I argue, however, that there are no criteria of identity, either synchronic or diachronic, for any kind whatsoever. I begin by elaborating the notion of a criterion of identity in order to clarify what exactly is being denied when I maintain there are none. I examine the motivation of those who qualify in some way (...) the general claim that there are synchronic and diachronic criteria of identity for every kind, then present my direct and categorical argument against such criteria. I next evaluate the objections of those who argue that rejecting criteria of identity has untenable results. These objections are ineffective, each based on the incorrect assumption that if there is no criterion of identity for a kind, the identity of an instance of that kind is independent of its qualities. I conclude by considering some of the upshots of rejecting criteria of identity and the insight doing so provides into things in general and the limits of ontological inquiry. (shrink)

Jerome Wakefield’s harmful dysfunction analysis of medical disorder is an influential hybrid of naturalist and normative theories. In order to conclude that a condition is a disorder, according to the HDA, one must determine both that it results from a failure of a physical or psychological mechanism to perform its natural function and that it is harmful. In a recent issue of this journal, I argued that the HDA entails implausible judgments about which disorders there are and how they are (...) individuated. The same arguments apply to other views that incorporate a harm criterion. More recently, David G. Limbaugh has modified the HDA by providing a novel account of the way in which a disorder must be harmful. Here, I briefly review the relevant issues and then critically assess Limbaugh’s account. I argue in the end that Limbaugh’s revisions do not succeed in making accounts like the HDA more attractive. (shrink)

Four-dimensionalism, the stage theory version in particular, has been defended as the best solution for avoiding vagueness in regards to composition, persistence and identity. Stage theory is highly problematic by itself, and the two views usually packed with it, unrestricted composition and counterpart theory, are a heavy burden. However, dispensing with these two views, four-dimensionalism could avoid vague persistence by issuing a criterion that would establish sharp temporal boundaries for the existence of genuine entities (simples, molecules and living organisms). This (...) would avoid vague existence and vague identity, but in a way that is still compatible with endurantism. Nevertheless, a minimal (substantialist) four-dimensionalism, a worm perdurantist ontology, would fit better with the unique way in which organisms persist: by retaining both identity and intrinsic change. (shrink)

An influential line of thought in metaphysics holds that where common sense discerns a tree or a dog or a baseball there may be just many microparticles. Provided the microparticles are arranged in the right way—are “treewise” or “dogwise” or “baseballwise” arranged—our sensory experiences will be just the same as if a tree or dog or baseball were really there. Thereforewhetherthere really are such familiar objects in the world can be decided only by determining whatmoreis needed for microparticles dogwise arranged (...) actually tocomposea dog. This paper argues that this line of thought sets up the wrong agenda. Composition is trivial; dogwise (etc.) arrangement is tricky. Dogwise arrangement will obtain in the wrong regions unless we stipulate that there are dogs, and that dogwise arrangement obtains only within their borders. The bearers of dogwise arrangement, moreover, will have to be dogs themselves, not their microparticles. Thus allowing that dogwise arrangement obtains at all is allowing that there are dogs. (shrink)

This paper opposes universal mereological composition (UMC). Sider defends it: unless UMC were true, he says, it could be indeterminate how many objects there are in the world. I argue that there is no general connection between how widely composition occurs and how many objects there are in the world. Sider fails to support UMC. I further argue that we should disbelieve in UMC objects. Existing objections against them say that they are radically unlike Aristotelian substances. True, but there is (...) a stronger objection. This is that they are characterized by no properties, and so fail to be like anything – even themselves. (shrink)

I will here present a number of problems concerning the idea that there is ontological vagueness, and the related claim that appeal to this idea can help solve some vagueness-related problems. A theme underlying the discussion will be the distinction between vagueness specifically and indeterminacy more generally (and, relatedly, the distinction between ontological vagueness and ontological indeterminacy). Even if the world is somehow ontologically indeterminate it by no means follows that it is, properly speaking, ontologically vague.1..

Kurt Gödel’s version of the Ontological Proof derives rather than assumes the crucial Possibility Claim: the claim that it is possible that something God-like exists. Gödel’s derivation starts off with a proof of the Possible Instantiation of the Positive: the principle that, if a property is positive, it is possible that there exists something that has that property. I argue that Gödel’s proof of this principle relies on some implausible axiological assumptions but it can be patched so that it only (...) relies on plausible principles. But Gödel’s derivation of the Possibility Claim also needs a substantial axiological assumption, which is still open to doubt. (shrink)

If you are a realist about groups there are three main theories of what to identify groups with. I offer reasons for thinking that two of those theories fail to meet important desiderata. The third option is to identify groups with sets, which meets all of the desiderata if only we take care over which sets they are identified with. I then canvass some possible objections to that third theory, and explain how to avoid them.

A surgical head-transplant technique, HEAVEN, promises to offer significantly improved quality of life for quadriplegics and others whose minds are functional, but whose bodies require artificial support to continue living. HEAVEN putatively actualizes a thought-experiment long debated by philosophers concerning the definition of personhood and criterion of personal identity through time and change. HEAVEN’s advocates presume to preserve the identity of the person whose head is transplanted onto another’s living body, leaving one’s previous body behind as one would their corpse. (...) Various classical and contemporary theories of personhood and personal identity would support this presumption, while others would contest it as providing an accurate or complete view of what is essential for a human person to persist through this procedure. This paper brings such theories to bear in analyzing whether HEAVEN can indeed deliver on its promise of complete ontological survival for the person whose head is transplanted. (shrink)

Suppose that you're lying in bed. You just woke up. But you're alert. Your mind is clear and you have no distractions. As you lie there, you think to yourself, ‘2 + 2 = 4.’ The thought just pops into your head. But, wanting to be sure of your mathematical insight, you once again think ‘2 + 2 = 4’, this time really meditating on your thought. Now suppose that you're sitting in an empty movie theatre. The lighting is normal (...) and the screen in front of you is blank. Then at some point an image of a peach is flashed on the screen. The image isn't up there for long. In fact, it's only on the screen for what seems like an instant—just long enough for you to see it. These two scenarios are a bit mundane. But, as I will show, reflection on them can yield significant results concerning the nature of persons and their persistence through time. First I will show that thought and perception have temporal constraints whereby your thinking or perceiving in the above scenarios implies that you exist through a temporally.. (shrink)

Sometimes in philosophy one view engenders another. If you hold the first, chances are you hold the second. But it’s not always because the first entails the second. Sometimes the tie is less clear, less clean. One such tie is between substance dualism and anti-criterialism. Substance dualism is the view that people are, at least in part, immaterial mental substances. Anti-criterialism is the view that there is no criterion of personal identity through time. Most philosophers who hold the first view (...) also hold the second. In fact, many philosophers just assume that substance dualists ought to, or perhaps even have to, accept anti-criterialism. But I aim to show that this assumption is baseless. Substance dualism doesn’t entail, suggest, support, or in any way motivate anti-criterialism, and anti-criterialism confers no benefit on dualism. Substance dualists have no special reason—and, indeed, no good reason at all—to accept anti-criterialism. Or so I shall argue. My aim isn’t to defend substance dualism, nor is it to attack anti-criterialism. My aim is to show that, contrary to a long-standing trend, dualists needn’t be anti-criterialists. Nor, as it will turn out, should they be. (shrink)

In virtue of what do things persist through time? Are there criteria of their identities through time? Anti-criterialists say no. One prominent challenge to anti-criterialism comes in two steps. The first step is to show that anti-criterialists are committed specifically to the claim that there are no informative metaphysically sufficient conditions for identity through time. The second step is to show that this commitment yields absurd results. Each step of this challenge is open to objection. However, in what follows, I (...) will refortify this challenge to anti-criterialism by offering new reasons to take each step. (shrink)

When it comes to personal identity, two approaches have long ruled the roost. The first is the psychological approach, which has it that our persistence through time consists in the continuance of certain of our psychological traits, such as our memories, beliefs, desires, or personality. The second is the biological approach, according to which personal persistence consists in continuity in our physical or biological makeup. Amid the bipartite reign of these approaches, a third contender has emerged: the phenomenal approach. On (...) this approach, personal persistence consists in continuity in phenomenal consciousness or the capacity for phenomenal consciousness. In this paper I will introduce and defend a new argument for the phenomenal approach. In the process, I will argue against the psychological and biological approaches. I will also address some lingering questions and outline further ways to develop the phenomenal approach. (shrink)

Most theists believe that they will survive death. Indeed, they believe that any given person will survive death and persist into an afterlife while remaining the very same person. In light of this belief, one might ask: how—or, in virtue of what—do people survive death? Perhaps the most natural way to answer this question is by appealing to some general account of personal identity through time. That way one can say that people persist through the time of their death in (...) the same way that people persist through time in general. Then the obvious question is: how—or, in virtue of what—do people persist through time in general? Many different answers to this question have been proposed. Some philosophers think that personal identity through time consists in something, such as psychological or biological continuity. They think that there are informative necessary and sufficient conditions—i.e., criteria—for personal identity through time. These philosophers are criterialists. Other philosophers are anti-criterialists. Anti-criterialists believe that people persist through time, but they deny that there are any informative criteria for personal identity through time. In this paper I develop a challenge to anti-criterialism. I begin by spelling out the commitments of anti-criterialism. Then I argue that there are good reasons for anyone to reject anti-criterialism. And then I argue that theists have special reasons to reject anti-criterialism (This is particularly important and noteworthy because a substantial portion of those who defend anti-criterialism are theists. Examples include [but may not be limited to] Trenton Merricks, Richard Swinburne, Joseph Butler, and Thomas Reid). I conclude that there is an informative criterion for personal identity through time and death, even if we haven’t heard of it yet. (shrink)

“We are animals.” That’s what animalists say—that’s their slogan. But what animalists mean by their slogan varies. Many animalists are adamant that what they mean—and, indeed, what the true animalist thesis is—is that we are identical to animals (human animals, to be precise). But others say that’s not enough. They say that the animalist thesis has to be something more—perhaps that we are essentially or most fundamentally human animals. This paper argues that, depending on how we understand it, animalism is (...) either false or uninteresting. If animalism is just the claim that we are identical to animals, then it is uninteresting. For it doesn’t provide an answer to the question it’s meant to address. On the other hand, if animalism entails a stronger claim, such as that we are essentially animals, then animalism is false. Either way, we should set animalism aside. (shrink)

If we are physical things with parts, then accounts of what we are and accounts of when composition occurs have important implications for one another. Defenders of restricted composition tend to endorse a sparse ontology in taking an eliminativist stance toward composite objects that are not organisms, while claiming that we are organisms. However, these arguments do not entail that we are organisms, for they rely on the premise that we are organisms. Thus, sparsist reasoning need not be paired with (...) animalism, but could instead be paired with other accounts according to which we are composites. The embodied mind account—a version of the brain view—is one such account. Replacing the premise that we are organisms with the premise that we are embodied minds, in arguments that otherwise parallel those supporting animalist sparsism, yields an account according to which composite objects include thinkers, but perhaps nothing else. Since animalism has implausible implications about scenarios which are handled better by the embodied mind account, this approach is preferable to animalist sparsism. Furthermore, the role of mental features in sparsism makes embodied mind sparsism the more reasonable conclusion. Meanwhile, adopting sparsism allows the embodied mind account to dodge objections that may not be as easily avoided by it or other versions of the brain view if not paired with sparsism. These include objections about brains that are not persons, inorganic part replacement, and another form of part replacement that might seem to allow one to get a new brain. (shrink)

Some metaphysicians believe that existence debates are easily resolved by trivial inferences from Moorean premises. This paper considers how the introduction of negative Moorean facts—negative existentials that command Moorean certainty—complicates this picture. In particular, it shows how such facts, when combined with certain plausible metaontological principles, generate a puzzle that commits the proponents of this method to a contradiction.

According to the prevalent 'sum view' of stuffs, each portion of stuff is a mereological sum of its subportions. The purpose of this paper is to re-examine the sum view in the light of a modal temporal mereology which distinguishes between different varieties of summation relations. While admitting David Barnett's recent counter-example to the sum view, we show that there is nonetheless an important sense in which all portions of stuff are sums of their subportions. We use our summation relations (...) to develop, as an alternative to the sum view, an analysis of stuffs that distinguisher between the ways in which different sorts of stuffs are sums of their subportions. (shrink)

It is often assumed that indeterminacy in mereological relations—in particular, indeterminacy in which collections of objects have fusions—leads immediately to indeterminacy in what objects there are in the world. This assumption is generally taken as a reason for rejecting mereological vagueness. The purpose of this paper is to examine the link between mereological vagueness and existential vagueness. I hope to show that the connection between the two forms of vagueness is not nearly so clear-cut as has been supposed.

In this paper, I focus on three issues intertwined in current debates between endurantists and perdurantists—(i) the dimension of persisting objects, (ii) whether persisting objects have timeless, or only time-relative, parts, and (iii) whether persisting objects have proper temporal parts. I argue that one standard endurantist position on the first issue is compatible with standard perdurantist positions on parthood and temporal parts. I further argue that different accounts of persistence depend on the claims about objects' dimensions and not on the (...) auxiliary claims about parthood and temporal parts. (shrink)

Partial grounding is often thought to be formally analogous to proper parthood in certain ways. Both relations are typically understood to be asymmetric and transitive, and as such, are thought to be strict partial orders. But how far does this analogy extend? Proper parthood is often said to obey the weak supplementation principle. There is reason to wonder whether partial grounding, or, more precisely, proper partial grounding, obeys a ground-theoretic version of this principle. In what follows, I argue that it (...) does not. The cases that cause problems for the supplementation principle for grounding also serve as counterexamples to another principle, minimality, defended by Paul Audi. (shrink)

There are at least three vaguely atomistic principles that have come up in the literature, two explicitly and one implicitly. First, standard atomism is the claim that everything is composed of atoms, and is very often how atomism is characterized in the literature. Second, superatomism is the claim that parthood is well-founded, which implies that every proper parthood chain terminates, and has been discussed as a stronger alternative to standard atomism. Third, there is a principle that lies between these two (...) theses in terms of its relative strength: strong atomism, the claim that every maximal proper parthood chain terminates. Although strong atomism is equivalent to superatomism in classical extensional mereology, it is strictly weaker than it in strictly weaker systems in which parthood is a partial order. And it is strictly stronger than standard atomism in classical extensional mereology and, given the axiom of choice, in such strictly weaker systems as well. Though strong atomism has not, to my knowledge, been explicitly identified, Shiver appears to have it in mind, though it is unclear whether he recognizes that it is not equivalent to standard atomism in each of the mereologies he considers. I prove these logical relationships which hold amongst these three atomistic principles, and argue that, whether one adopts classical extensional mereology or a system strictly weaker than it in which parthood is a partial order, standard atomism is a more defensible addition to one’s mereology than either of the other two principles, and it should be regarded as the best formulation of the atomistic thesis. (shrink)