In this paper, I argue that Spinoza holds a perspectivalist view of mereological composition, a form of anti-realism. The paper has two parts: In the first half of the paper, I introduce interpretive puzzles for the standard realist reading of Spinoza’s mereology. In the second half of the paper, I discuss Spinoza’s positive view on mereological composition and present a perspectivalist reading that avoids the interpretive puzzles.

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 interpretations, and wavefunction realism. In particular, I (...) extensively argue for the following claim: several interpretations of QM do not support monism at a more serious scrutiny, or do so only with further problematic assumptions, or even support different versions of it. (shrink)

This entry focuses on two of the more historically important monisms: existence monism and priority monism . Existence monism targets concrete objects and counts by tokens. This is the doctrine that exactly one concrete object exists. Priority monism also targets concrete objects, but counts by basic tokens. This is the doctrine that exactly one concrete object is basic, which will turn out to be the classical doctrine that the whole is prior to its parts.

The approach adopted by Early Modern authors to the notions of ‘whole’ and ‘part’ (what is called, in contemporary metaphysics, “mereology”, from the Ancient Greek word μερος: ‘part’) constitutes a central feature of their respective systems. The issue of what constituted a whole became all the more crucial as the new, revolutionary approaches to matter and extension – which mark the unavoidably fuzzy beginning of what we define as “modernity” – demanded a novel (and in some cases, radical) approach to (...) the questions of what constitutes a whole and how parts are arranged and bound together. It is important to mention that diverse attitudes towards mereology characterised Early Modern philosophers orthogonally to their belonging to different camps, such as the traditional categories of ‘Rationalists’ and ‘Empiricists’. Some of these philosophers considered wholes to be ontologically and/or logically prior to their parts (an approach that we may call “organicist” or “holist”, applying an anachronistic but nonetheless appropriate label). Others considered wholes to be derivative, resulting from the union of their parts (an approach that could be named “mereological mechanism”). Therefore, a word about terminology is in order: in what follows, I will apply the label “holist/organicist” to refer to a philosopher who would favour the priority of wholes over parts. Vice versa, I shall label as a “mereological mechanist” any philosopher favouring the priority of parts over the wholes formed by those parts, regardless of such parts being exclusively material, or including spiritual/mental parts as well as material ones. (shrink)

According to “existence monism,” there is only one concrete particular, the cosmos as a whole (Horgan and Potrč 2000, 2008). According to “priority monism,” there are many concrete particulars, but all are ontologically dependent upon the cosmos as a whole, which accordingly is the only fundamental concrete particular (Schaffer 2010a, 2010b). In essence, the difference between them is that existence monism does not recognize any parts of the cosmos, whereas priority monism does – it just insists that the parts are (...) ontologically dependent upon the whole in this case. Brentano never maintained either of these views. But in the last two years of his life, he seems to have held the following approximation: there is only one physical substance, namely, the material universe as a whole. This is twice removed from existence or priority monism: first, it allows for a plurality of mental substances (souls); secondly, it allows for a plurality of physical accidents, which in Brentano’s reistic ontology are also concrete particulars. Still, the view that the only physical substance is the universe as a whole is quite radical and finds little precedent in the history of philosophy. (shrink)

The article deals with the problem concerning the principles of the metaphysics explanatory basis, which provide the achievement of the goals in this most general, most abstract, and, at the same time, the most debatable field of knowledge. Different kinds of explanatory basis in metaphysics are analyzed – cosmic mereological monism, structural cosmic monism, cosmic modal monism, natural substance monism, transcendent substance monism, existential monism, abstract monism as well as the similar kinds of metaphysical pluralism including atomism and space-time pluralism. (...) The implausibility of pluralism and its inefficiency for solving the problems of metaphysics is argued, while for metaphysical monism the need for its clarification as a grounding force is stated. The conception of super-monism is proposed. It is based on the logic of fundamental reality which differs from generally accepted formal logic in that it lacks logical laws, primarily the law of contradiction. The fundamental reality is defined as pure being which is identical with a difference, identity, existence, and the existing. By the identification of the various, this reality is defined as one. By identity with distinction, this reality is defined as the ground of all world diversity. Being which is expressed in terms of difference and identity is reflected in the metaphysical formula, which is proposed as the only tool for describing everything that exists at the extremely abstract level. (shrink)

Em maio de 1643, Elisabeth da Bohemia endereçou uma questão a Descartes que inaugurou uma Correspondência de seis anos, até a morte do filósofo. Ele dedica à Princesa o seu trabalho de maturidade metafísica (Princípios de Filosofia Primeira, 1644) e redige Paixões da Alma (1649) como um dos resultados do diálogo com a filósofa. O silenciamento dos últimos cem anos de historiografia sobre o legado de Elisabeth da Bohemia nesta troca epistolar causou distorções e, em alguns casos, lastreou o viés (...) como regra e como a história. Uma das consequências dessa distorção está na leitura de que a questão da filósofa consistiria em uma crítica ao dualismo substancial. Neste estudo busco oferecer uma interpretação da natureza da primeira questão, com o intuito de esclarecer o pensamento da filósofa e o seu papel no diálogo, de uma maneira compreensiva, sem subscrever o paradigma literário do solilóquio cartesiano, e seu viés na literatura filosófica. (shrink)

In this paper, I inspect the grounds for the mature Spinozist argument for substance monism. The argument is succinctly stated at Ethics Part 1, Proposition 14. The argument appeals to two explicit premises: (1) that there must be a substance with all attributes; (2) that substances cannot share their attributes. In conjunction with a third implicit premise, that a substance cannot not have any attribute whatsoever, Spinoza infers that there can be no more than one substance. I begin the inspection (...) with the analysis of the first premise, which is provided in the form of the four proofs of God’s existence in Ethics Part 1, Proposition 11. While demonstrating how Spinoza adopts a progressive approach, where the fourth proof of God’s existence is more successful and persuasive than the third, which is more successful than the second, etc., I also unpack concepts central to Spinoza’s thinking here, including the concepts of reason (ratio) and power (potesta or potentia). I then analyze the second premise of the Spinozist argument for substance monism, as established by Ethics Part 1, Proposition 4 in conjunction with Ethics Part 1, Proposition 5. I take up and respond to the objection attributed to Leibniz that a substance p can have the attributes x and y and a substance q can have the attributes y and z, and thus that substances can share some attributes while remaining distinct. Throughout the study, my attention is focused on the argumentative procedures Spinoza adopts. This yields a close, internalist reading of the text where Spinoza effectively embraces substance monism. In conclusion to this study, I underscore to the originality of Spinoza’s argument for seventeenth century theories of substance. (shrink)

The 18th-century American philosopher Jonathan Edwards argues that nothing endures through time. I analyze his argument, paying particular attention to a central principle it relies on, namely that “nothing can exert itself, or operate, when and where it is not existing”. I also consider what I supposed to follow from the conclusion that nothing endures. Edwards is sometimes read as the first four-dimensionalist. I argue that this is wrong. Edwards does not conclude that things persist by having different temporal parts; (...) he concludes that nothing persists. (shrink)