•  1951
    Relativity and Three Four‐dimensionalisms
    Philosophy Compass 11 (2): 102-120. 2016.
    Relativity theory is often said to support something called ‘the four-dimensional view of reality’. But there are at least three different views that sometimes go by this name. One is ‘spacetime unitism’, according to which there is a spacetime manifold, and if there are such things as points of space or instants of time, these are just spacetime regions of different sorts: thus space and time are not separate manifolds. A second is the B-theory of time, according to which the past, present, and…Read more
  •  464
    Minimality, Geometry and Simultaneity
    Iris. European Journal of Philosophy and Public Debate 2 (4): 451-465. 2010.
    I give two new uniqueness results for the standard relation of simultaneity in the context of metrical time oriented Minkowski spacetime. These results improve on the classic ones due to Malament and Hogarth, for they adopt only minimal uncontroversial assumptions. I conclude addressing whether these results should be taken to definitely refute the general epistemological thesis of conventionalism
  •  262
    Universalismo ed estensionalismo.(Ovvero: la posizione di Varzi non è Rea)
    In Elena Casetta & Valeria Giardino (eds.), Mettere a fuoco il mondo, © Isonomia – Epistemologica, University of Urbino. pp. 96-103. 2014.
  •  193
    Interpreting Quantum Entanglement: Steps towards Coherentist Quantum Mechanics
    British Journal for the Philosophy of Science. forthcoming.
    We put forward a new, ‘coherentist’ account of quantum entanglement, according to which entangled systems are characterized by symmetric relations of ontological dependence among the component particles. We compare this coherentist viewpoint with the two most popular alternatives currently on offer—structuralism and holism—and argue that it is essentially different from, and preferable to, both. In the course of this article, we point out how coherentism might be extended beyond the case of enta…Read more
  •  192
    Quantum mechanics and Priority Monism
    Synthese 191 (5): 1-14. 2014.
    The paper address the question of whether quantum mechanics (QM) favors Priority Monism, the view according to which the Universe is the only fundamental object. It develops formal frameworks to frame rigorously the question of fundamental mereology and its answers, namely (Priority) Pluralism and Monism. It then reconstructs the quantum mechanical argument in favor of the latter and provides a detailed and thorough criticism of it that sheds furthermore new light on the relation between parthoo…Read more
  •  154
    Back to Black
    Ratio 29 (1): 1-10. 2016.
    This is a brief sequel to Max Black 's classic dialogue on the Identity of Indiscernibles. Interlocutor A defends the bundle theory by endorsing the view according to which Black 's world does not contain two indiscernible spheres but rather a single, bi-located sphere. His opponent, B, objects that A cannot distinguish such a world from a world with a single, uniquely located sphere, hence that the view in question adds nothing to A's original response to Black 's challenge. A is simply denying…Read more
  •  151
    Metaphysics of Time in Spacetime
    Thought: A Journal of Philosophy 3 (1): 1-8. 2014.
    I give a new and more general argument against presentism within relativistic spacetimes. This argument is untouched by different recent proposals designed to save presentism in a relativistic setting
  •  116
    Quantum Metaphysical Indeterminacy
    Philosophical Studies 1-29. 2018.
    On many currently live interpretations, quantum mechanics violates the classical supposition of value definiteness, according to which the properties of a given particle or system have precise values at all times. Here we consider whether either metaphysical supervaluationist or determinable-based approaches to metaphysical indeterminacy can accommodate quantum metaphysical indeterminacy (QMI). We start by discussing the standard theoretical indicator of QMI, and distinguishing three seemingly …Read more
  •  108
    Quantum monism: an assessment
    Philosophical Studies 175 (12): 3217-3236. 2018.
    Monism is roughly the view that there is only one fundamental entity. One of the most powerful argument in its favor comes from quantum mechanics. Extant discussions of quantum monism are framed independently of any interpretation of the quantum theory. In contrast, this paper argues that matters of interpretation play a crucial role when assessing the viability of monism in the quantum realm. I consider four different interpretations: modal interpretations, Bohmian mechanics, many worlds interp…Read more
  •  98
    The Multi-location Trilemma
    Erkenntnis 1-17. forthcoming.
    The possibility of multilocation --- of one entity having more than one exact location --- is required by several metaphysical theories such as the immanentist theory of universals and three-dimensionalism about persistence. One of the most pressing challenges for multi-location theorists is that of making sense of exact location --- in that extant definitions of exact location entail a principle called Functionality, according to which nothing can have more than one exact location. Recently in …Read more
  •  96
    Composition is Identity and Mereological Nihilism
    Philosophical Quarterly 66 (263): 219-235. 2016.
    Composition is Identity is the thesis that a whole is, strict and literally, its parts considered collectively. Mereological Nihilism is the thesis that there are no composite objects whatsoever instead. This paper argues that they are equivalent, at least insofar as Composition is Identity is phrased in a particular way. It then addresses some consequences of such equivalence.
  •  96
    De li accidiosi che son avversi al possibile
    Rivista Italiana di Filosofia Analitica Junior 5 (2): 101-127. 2014.
    This is a supplement to our book "Le tribolazioni del filosofare. Comedia metaphysica ne la quale si tratta de li errori & de le pene de l’Infero". It features an entirely new canto of the poem (originally thought to be lost) along with an extensive commentary. The canto covers the first ring of the circle of the Sullen, which hosts the Adverse to the Possible, and deals with several philosophical questions concerning the metaphysics of modality.
  •  86
    Multilocation, Fusions and Confusions
    Philosophia 43 (1): 25-33. 2015.
    The paper provides a new and detailed critique of Barker and Dowe’s argument against multi-location. This critique is not only novel but also less committal than previous ones in the literature in that it does not require hefty metaphysical assumptions. The paper also provides an analysis of some metaphysical relations between mereological and locational principles
  •  79
    An elegant universe
    Synthese 1-16. 2017.
    David Lewis famously endorsed Unrestricted Composition. His defense of such a controversial principle builds on the alleged innocence of mereology. This innocence defense has come under different attacks in the last decades. In this paper I pursue another line of defense, that stems from some early remarks by van Inwagen. I argue that Unrestricted Composition leads to a better metaphysics. In particular I provide new arguments for the following claims: Unrestricted Composition entails extensiona…Read more
  •  75
    Priority monism, dependence and fundamentality
    Philosophical Studies 177 (1): 1-20. 2020.
    Priority monism is roughly the view that the universe is the only fundamental object, that is, a concrete object that does not depend on any other concrete object. Schaffer, the main advocate of PM, claims that PM is compatible with dependence having two different directions: from parts to wholes for subcosmic wholes, and from whole to parts for the cosmic whole. Recently it has been argued that this position is untenable. Given plausible assumptions about dependence, PM entails that dependence …Read more
  •  72
    The Relativistic Invariance of 4D Shapes
    Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 50 1-4. 2015.
  •  71
    In this paper, we focus on two related reductive theses in metaphysics—Humean Supervenience and Composition as Identity—and on their status in light of the indications coming from science, in particular quantum mechanics. While defenders of these reductive theses claim that they can be updated so as to resist the quantum evidence, we provide arguments against this contention. We claim that physics gives us reason for thinking that both Humean Supervenience and Composition as Identity are at leas…Read more
  •  67
    On the possibility of submergence
    Analysis 77 (3): 501-511. 2017.
    Are submergence and submergent properties metaphysically possible? This is a substantive question that has been either utterly neglected or quickly answered in the negative. This neglect is not only significant in itself; the possibility of submergence plays a crucial role in hotly debated topics in metaphysics, for example, the debate over Monism and Pluralism. This paper is intended to prompt a discussion about metaphysical submergence. In particular I will provide examples of submergent prope…Read more
  •  55
    Extensionality, Multilocation, Persistence
    Dialectica 68 (1): 121-139. 2014.
    The paper addresses various questions about the logical and metaphysical relations between notions of parthood, location and persistence. In particular it argues that the conjunction of mereological extensionalism and multilocation, is highly problematic, if not utterly inconsistent. It thus provides an alternate route to reject multilocation, one that does not rely on Barker and Dowe's well known argument, at least for those who endorse extensionality of parthood. It then argues that other majo…Read more
  •  53
    Failure of Boredom: The Pendulum of Composition as Identity
    American Philosophical Quarterly 55 (3): 281-292. 2018.
    This paper provides new arguments for the following claim: either strong composition as identity cannot retain the full strength of both the logical principles of one-one identity and its semantical principles or it only delivers cases of boring composition in that it entails mereological nihilism.
  •  51
    In this paper, we address an infamous argument against divisibility that dates back to Zeno. There has been an incredible amount of discussion on how to understand the critical notions of divisibility, extension, and infinite divisibility that are crucial for the very formulation of the argument. The paper provides new and rigorous definitions of those notions using the formal theories of parthood and location. Also, it provides a new solution to the paradox of divisibility which does not face s…Read more
  •  50
    A New Taxonomy of Persisting Objects
    Topoi 34 (1): 283-294. 2015.
    The paper presents a thorough exploration of the problem of persistence in a relativistic context. Using formal methods such as mereology, formal theories of location and the so called intrinsic formulation of special relativity we provide a new, more rigorous and more comprehensive taxonomy of persisting entities. This new taxonomy differs significantly from the ones that are present in the recent literature
  •  49
    Quantum Ontology and Extensional Mereology
    with Vincenzo Fano and Gino Tarozzi
    Foundations of Physics 41 (11): 1740-1755. 2011.
    The present paper has three closely related aims. We first argue that Agazzi’s scientific realism about Quantum Mechanics is in line with Selleri’s and Tarozzi’s proposal of Quantum Waves. We then go on to formulate rigorously different metaphysical principles such as property compositional determinateness and mereological extensionalism. We argue that, contrary to widespread agreement, realism about Quantum Mechanics actually refutes only the former. Indeed we even formulate a new quantum mecha…Read more
  •  49
    Pre-Socratic Discrete Kinematics
    Disputatio 5 (35): 21-31. 2013.
  •  45
    Arrows, Balls and the Metaphysics of Motion
    Axiomathes 24 (4): 499-515. 2014.
    The arrow paradox is an argument purported to show that objects do not really move. The two main metaphysics of motion, the At–At theory of motion and velocity primitivism, solve the paradox differently. It is argued that neither solution is completely satisfactory. In particular it is contended that there are no decisive arguments in favor of the claim that velocity as it is constructed in the At–At theory is a truly instantaneous property, which is a crucial assumption to solve the paradox. If…Read more
  •  32
    Is parthood identity?
    Synthese 1-15. forthcoming.
    According to a well known, yet controversial metaphysical thesis, Composition is Identity. Recently, Kris McDaniel has articulated and defended a related—and arguably more controversial—thesis, one he calls Parthood is Identity. Roughly the view has it that a whole is, strictly and literally, identical to each of its parts considered individually. At first sight, the view seems rather implausible. However, McDaniel’s formulation and defense are worthy of a serious discussion. In this paper I put…Read more
  •  27
    Quantum metaphysical indeterminacy
    Philosophical Studies 176 (10): 2599-2627. 2019.
    On a wide variety of presently live interpretations, quantum mechanics violates the classical supposition of ‘value definiteness’, according to which the properties of a given particle or system have precise values at all times. Here we consider whether two recent approaches to metaphysical indeterminacy—a metaphysical supervaluationist account, on the one hand, and a determinable-based account, on the other—can provide an intelligible basis for quantum metaphysical indeterminacy, understood as …Read more
  •  26
    Solving a Mereological Puzzle
    Thought: A Journal of Philosophy 7 (4): 271-277. 2018.
  •  22
    Composition, identity, and emergence
    Logic and Logical Philosophy 25 (3): 429-443. 2016.
    Composition as Identity is the thesis that a whole is, strictly and literally, identical to its parts, considered collectively. McDaniel [2008] argues against CAI in that it prohibits emergent properties. Recently Sider [2014] exploited the resources of plural logic and extensional mereology to undermine McDaniel’s argument. He shows that CAI identifies extensionally equivalent pluralities – he calls it the Collapse Principle – and then shows how this identification rescues CAI from the emergent…Read more