Maupertuis and Euler had an ambivalent and tense relationship to their Leibniz, especially concerning his grounding of physics in metaphysics. Consequently, this paper has two intersecting goals: first, it attempts to flesh out some aspects of the reception of Leibnizian thought in the context of Enlightenment physics, more precisely, in the deduction of the Principle of least action (henceforth PLA). Second, it also highlights a specific approach towards the intersection of physics and metaphysics that was championed by (...) the Berlin Academy, which would not have been well received in Paris or London. To that end, I will briefly examine some aspects of the strategies of argumentation, metaphysical presumptions and self-ascribed methodologies (often quite different from their actual methodology) employed by Maupertuis and Euler in their respective deductions of the PLA. (shrink)

In Immanuel Kant's pre-critical writings as well as in his main critical work, the Critique of Pure Reason, one finds a whole battery of fierce attacks on core doctrines of Leibnizian philosophy, e.g., the monadology, the principle of the identity of indiscernibles, the principle of sufficient reason, the doctrine of the pre-established harmony, or the relationalist theory of space and time. It is tempting to read Kant's philosophical development as a gradual emancipation from his Leibnizian upbringing, culminating in (...) a thorough rejection of Leibnizian philosophy as a paradigm case of the kind of dogmatic metaphysics that Kant wants to overcome with his critical philosophy. But in addition to the familiar texts in which Kant attacks the Leibnizians there are several curious, less well-discussed passages in which Kant speaks in highly approving terms of Leibniz. In these passages Kant self-avowedly defends Leibniz against his Leibniz-Wolffian followers who, according to Kant, have seriously misunderstood Leibniz's original position. Kant maintains that a correct reading of Leibniz reveals that his own and Leibniz's views are in fact very close, and that with regard to many issues that are central to transcendental idealism Leibniz had already tried to say what Kant then made explicit in his critical work. The project of this essay is to lay the foundation for the examination of an unorthodox reading of the relation between Leibnizian metaphysics and Kantian transcendental idealism, according to which Kant's critical philosophy can correctly be described as the "true apology of Leibniz", as Kant claims, while Kant's sharply critical objections in the pre-critical works and in the Critique of Pure Reason for the most part don't apply to Leibniz's original theory but to Leibniz-Wolffian school-philosophy. The present essay provides the necessary groundwork for the examination of this unorthodox reading by showing that, and to what extent, these Kantian objections do not apply to Leibniz himself, and by arguing that Kant's reading of certain central Leibnizian doctrines in which Leibnizian metaphysics is represented as a forerunner of transcendental idealism is indeed defensible. (shrink)

Die Ansicht, dass Leibniz urn 1700 oder einige Zeit danach ein überzeugter Idealist war oder wurde, der allein an die Realität der Geister und ihrer Ideen glaubte, hält sich merkwürdigerweise in der neueren Sekundärliteratur. In diesem Beitrag beurteilen wir die Textgrundlage für diese Behauptung nach von uns für solide gehaltenen Kriterien einer historischen Interpretation, wobei sich die Behauptung unserer Ansicht nach als unzureichend erweist. Obwohl Leibniz zur Überzeugung gelangt war, dass wirkliche "Atome" der Natur keine Ausdehnung hätten, war er sein (...) Leben hindurch auf die Geistesunabhängigkeit lebender Kreaturen festgelegt, in der Art, die eindeutig Idealismus ausschließt. Wir versuchen, die tieferen Gründe für die Beharrlichkeit der idealistischen Sichtweise, trotz ihrer textlichen und konzeptualen Schwierigkeiten, aufzudecken, indem wir sie letztlich in den ahistorischen Präferenzen der Kommentatoren lokalisieren. (shrink)

Se plantea la cuestión del papel de la armonía en la concepción de la racionalidad de Leibniz. Se sitúa esta noción en el marco de la metafísica de la individualidad sistémica, y aparece en dos lugares concretos. En primer lugar en el eje categorial uniformidad-diversi­dad, como principio de equilibrio entre ambos polos. Y en segundo lugar, aparece la noción de armonía en el nivel último de la racionalidad, concretamente en plano de la lógica de los principios. Este nivel se rige (...) por el principio general del orden, y precisamente este principio es explicado por Leibniz frecuentemente en relación con la armonía. (shrink)

I argue that we can learn quite a lot about Leibniz’s metaphysics, in particular about monads and their relationship to time, by viewing Leibniz through a McTaggartian lens. After presenting McTaggart’s highly influential two basic conceptions of time, the A- (or tensed) and B- (or tenseless) conceptions, I distinguish four possible models of the relationship between monads and time: the fi rst two invoke tenses, differing in whether they treat non-present states as “real,” while the latter two are tenseless, (...) differing in whether we construe the monad as (tenselessly) manifesting distinguishable perceptual states or as being in one indivisible but complex perceptual state representing the world as varying over time. A detailed study of the relative merits and demerits of the four models supports, I argue, the last model. Along the way I provide a Leibnizian account of the conscious illusion of temporal fl ow. (shrink)

I argue that we can learn quite a lot about Leibniz’s metaphysics, in particular about monads and their relationship to time, by viewing Leibniz through a McTaggartian lens. After presenting McTaggart’s highly influential two basic conceptions of time, the A- (or tensed) and B- (or tenseless) conceptions, I distinguish four possible models of the relationship between monads and time: the fi rst two invoke tenses, differing in whether they treat non-present states as “real,” while the latter two are tenseless, (...) differing in whether we construe the monad as (tenselessly) manifesting distinguishable perceptual states or as being in one indivisible but complex perceptual state representing the world as varying over time. A detailed study of the relative merits and demerits of the four models supports, I argue, the last model. Along the way I provide a Leibnizian account of the conscious illusion of temporal fl ow. (shrink)

The mature Leibniz frequently uses the phrase “moral necessity” in the context of discussing free choice. In this essay I provide a seventeenth century geneology of the phrase. I show that the doctrine of moral necessity was developed by scholastic philosophers who sought to retain a robust notion of freedom while purging bruteness from their systems. Two sorts of bruteness were special targets. The first is metaphysical bruteness, according to which contingent events or states of affairs occur without a sufficient (...) explanation. The second is semantic bruteness according to which a proposition can be true without a truth maker. Denying eithersort of bruteness was thought by some to raise problems for freedom. Defenders of moral necessity thought the notion solved these problems without having to invoke bruteness. (shrink)

This paper explores various metaphysical aspects of Leibniz’s concepts of space, motion, and matter, with the intention of demonstrating how the distinctive role of force in Leibnizian physics can be used to develop a theory of relational motion using privileged reference frames. Although numerous problems will remain for a consistent Leibnizian relationist account, the version developed within our investigation will advance the work of previous commentators by more accurately reflecting the specific details of Leibniz’s own natural philosophy, especially (...) his handling of the dynamical interactions of plenum bodies. (shrink)

“The Range of Leibnizian Compatibilism” Leibniz is generally regarded as a compatibilist, holding that an individual can be determined and also act freely. However, some Leibnizian texts suggest that perhaps Leibniz also had incompatibilist tendencies; in particular, Leibniz could not entirely give up the thesis that free individuals must have the ability to act in ways other than they actually do. I identify several varieties of deterministic threat to freedom and examine Leibniz's views with respect to them. Leibniz (...) must find room in his metaphysics for compatibilism not only with respect to human freedom, but also for divine freedom. There are asymmetries in his accounts of human and divine freedom that make it easier for Leibniz to accommodate compatibilism for God than for humans. (shrink)

In this paper, the author develops a theory of concepts and shows that it captures many of the ideas about concepts that Leibniz expressed in his work. Concepts are first analyzed in terms of a precise background theory of abstract objects, and once concept summation and concept containment are defined, the axioms and theorems of Leibniz's calculus of concepts (in his logical papers) are derived. This analysis of concepts is then seamlessly connected with Leibniz's modal metaphysics of complete individual (...) concepts. The fundamental theorem of Leibniz's modal metaphysics of concepts is proved, namely, whenever an object x has F contingently, then (i) the individual concept of x contains the concept F and (ii) there is a (counterpart) complete individual concept y which doesn't contain the concept F and which `appears' at some other possible world. Finally, the author shows how the concept containment theory of truth can be made precise and made consistent with a modern conception of truth. (shrink)

The mature Leibniz frequently uses the phrase “moral necessity” in the context of discussing free choice. In this essay I provide a seventeenth century geneology of the phrase. I show that the doctrine of moral necessity was developed by scholastic philosophers who sought to retain a robust notion of freedom while purging bruteness from their systems. Two sorts of bruteness were special targets. The first is metaphysical bruteness, according to which contingent events or states of affairs occur without a sufficient (...) explanation. The second is semantic bruteness according to which a proposition can be true without a truth maker. Denying eithersort of bruteness was thought by some to raise problems for freedom. Defenders of moral necessity thought the notion solved these problems without having to invoke bruteness. (shrink)

Newton rested his theory of mechanics on distinct metaphysical and epistemological foundations. After Leibniz's death in 1716, the Principia ran into sharp philosophical opposition from Christian Wolff and his disciples, who sought to subvert Newton's foundations or replace them with Leibnizian ideas. In what follows, I chronicle some of the Wolffians' reactions to Newton's notion of absolute space, his dynamical laws of motion, and his general theory of gravitation. I also touch on arguments advanced by Newton's Continental followers, such (...) as Leonhard Euler, who made novel attempts to defend his mechanical foundations against the pro-Leibnizian attack. This examination grants us deeper insight into the fate of Newton's mechanics on the Continent during the early eighteenth century and, more specifically, sheds needed light on the conflicts and tensions that characterized the reception of Newton's philosophy of mechanics among the Leibnizians. (shrink)

A popular story about Kant's relation to Leibniz presents Kant as a Leibniz-Wolffian by education who, inspired by his encounter with the teachings of Newton and Hume, took on the project of reconciling Leibniz-Wolffian metaphysics with Newtonian science and of responding to epistemological skepticism, a project that led him further and further away from his Leibniz-Wolffian roots and culminated in the total rejection of the Leibniz-Wolffian philosophy in the Critique of Pure Reason. In this essay, four shortcomings of the (...) popular story are identified and several suggestions are made about how to amend and expand the story in order to overcome these shortcomings. Furthermore, some of the most important Leibnizian doctrines that influenced Kant are collected and their role in Kant's philosophy is discussed. (shrink)

On the 300th anniversary of the consolidation of the metaphysical system of Leibniz in the Discours de metaphysique and the ensuing correspondence with Antoine Arnauld, it seemed fitting to reexamine the interaction of scientific and philosophical thought in the work of this great systematic thinker.

This paper explores various metaphysical aspects of Leibniz’s concepts of space, motion, and matter, with the intention of demonstrating how the distinctive role of force in Leibnizian physics can be used to develop a theory of relational motion using privileged reference frames. Although numerous problems will remain for a consistent Leibnizian relationist account, the version developed within our investigation will advance the work of previous commentators by more accurately reflecting the specific details of Leibniz’s own natural philosophy, especially (...) his handling of the dynamical interactions of plenum bodies. (shrink)

A premise of the Leibnizian cosmological argument from contingency says that no contingent fact can explain why there are any contingent facts at all. David Hume and Paul Edwards famously denied this premise, arguing that if every fact has an explanation in terms of further facts ad infinitum, then they all do. This is known as the Hume–Edwards Principle (HEP). In this paper, I examine the cosmological argument from contingency within a framework of metaphysical explanation or ground and defend (...) a ground-theoretic version of HEP which says, roughly, that the plurality of contingent facts is grounded in its members. (shrink)

In what follows, I will detail Kant's criticism of the Leibnizian conception of mind as it is presented in key chapters of the Kritik der reinen Vernunft . Approaching Kant with such a focus goes against the current predominant in contemporary Kant scholarship. Kant's engagement with Leibniz in the KrV is often taken as limited to the refutation of the latter's relational theory of space and time in the Aesthetic and the general criticism presented in the Amphiboly chapter, inasmuch (...) as Kant is taken to be primarily concerned with addressing empiricist opponents (a focus particularly evident in the English-language commentary). In addition, the argument against rational psychology in the Paralogisms is taken as challenging an essentially Cartesian position. The first two chapters of this project will introduce the Leibnizian conception of the mind, contrasting it with its Cartesian predecessor, and consider the career of the Leibnizian conception in the schools of 18th century Germany. As I will show, it was the Leibnizian conception of mind that held sway, despite scattered challenges, and that would have primarily been on Kant's mind when he turned to consider the extravagant claims of metaphysical psychology. In chapters 3-5, I turn to Kant's criticism of this conception as presented in the Transcendental Analytic of the KrV . There, I show how the subjective and objective deductions, in addition to the Amphiboly chapter, all address the Leibnizian claim of a parallelism between the investigations of the mental and the physical. In chapters 6-8, I consider the case against the Leibnizian conception of mind as presented in the Transcendental Dialectic, claiming that the doctrine of transcendental illusion plays an important (though largely ignored) role in explaining the grounds of the Leibnizian conception as it is transmitted in the rational psychology of Wolff, Baumgarten, Crusius, and Kant himself in the 1770's. Moreover, I argue that the limits Kant sets to empirical psychology are consistent with his criticism of the Leibnizian conception of mind, and, significantly, are motivated by deeper practical concerns. (shrink)

Leibniz's conceptual containment theory says that singular propositions of the form a is F are true when the complete concept of being a contains the concept of being F. In this paper, I provide a new semantics for first-order logic built around this idea. The semantics resolves longstanding problems for Leibniz's theory and can represent, without possible worlds, both hyperintensional distinctions among properties and a certain kind of presumably impossible situation that standard approaches cannot represent. The semantics also captures the (...) strong soundness and completeness of classical first-order logic. (shrink)

This is a book about Kant's views on causality as understood in their proper historical context. Specifically, Eric Watkins argues that a grasp of Leibnizian and anti-Leibnizian thought in eighteenth-century Germany helps one to see how the critical Kant argued for causal principles that have both metaphysical and epistemological elements. On this reading Kant's model of causality does not consist of events, but rather of substances endowed with causal powers that are exercised according to their natures and circumstances. (...) This innovative conception of Kant's view of causality casts a light on Kant's philosophical beliefs in general, such as his account of temporality, his explanation of the reconciliation of freedom and determinism, and his response to the skeptical arguments of Hume. (shrink)

This paper explores a PSR-connected trail leading from theistic idealism to a form of substance monism. In particular, I argue that the same style of argument available for a Leibnizian form of metaphysical idealism actually leads beyond idealism to something closer to Spinozistic monism. This path begins with a set of theological commitments about the nature and perfection of God that were widely shared among leading early modern philosophers. From these commitments, there arises an interesting case for metaphysical idealism, (...) roughly the thesis that only minds and mind-dependent states actually exist. However, I contend, that same theistic reasoning also leads to an idealist form of substance monism, the view that God is the only actual substance and that almost everything else is merely an intentional object in God’s mind. (shrink)

This essay examines the metaphysical foundation of Leibniz’s theory of space against the backdrop of the subtantivalism/relationism debate and at the ontological level of material bodies and properties. As will be demonstrated, the details of Leibniz’ theory defy a straightforward categorization employing the standard relationism often attributed to his views. Rather, a more careful analysis of his metaphysical doctrines related to bodies and space will reveal the importance of a host of concepts, such as the foundational role of God, the (...) holism of both geometry and the material world’s interconnections, and the viability and adequacy of a property theory in characterizing his natural philosophy of space. (shrink)

Some philosophers of mind have argued for considering consciousness as a further fundamental feature of reality in addition to its physical properties. Hence most of them are property dualists. But some of them are panpsychists. In the present paper it will be argued that being a real property dualist essentially entails being a panpsychist. Even if panpsychism deals rather elegantly with certain problems of the puzzle of consciousness, there’s no way around the composition problem. Adhering to the fundamentality claim of (...) the mind, it will be shown that only a radical revision of metaphysics will allow the panpsychist to avoid these troubles, and hence that a panpsychist must adopt Leibnizian idealism. (shrink)

It is common to hold that our conscious experiences at a single moment are often unified. But when consciousness is unified, what are the fundamental facts in virtue of which it is unified? On some accounts of the unity of consciousness, the most fundamental fact that grounds unity is a form of singularity or oneness. These accounts are similar to Newtonian views of space according to which the most fundamental fact that grounds relations of co-spatiality between various points (or regions) (...) of a space is the fact that these points (or regions) are parts of the same single space. In this paper, I sketch and defend an alternative account of unity of consciousness. Very roughly, the view holds that experiences are unified when they are connected in the right way. In this respect, the view is analogous to Leibnizian views of space according to which the oneness of space emerges from certain conditions over spatial relations. The Leibnizian alternative has significant implications for our understanding of the metaphysics of conscious experience, the cognitive architecture of the mind and our assessment of the conditions under which unity of consciousness breaks. (shrink)

Modern rationalism transformed the modern homeland to a discursive space and time by means of institutes governing the modern society in all its walks. Based on the Newtonian and Kantian conception of space and time the discursive field is just a scene wherein any human individual adopts stewardship to create progress by reducing landscape and non-human life to auxiliary items for human’s benefit. In contrast, Aldo Leopold considered humans, non human life and the landscape as mutually influencing participants and enlarged (...) ethical care to all living participants and the landscape, called ´the land´. Integrity and autonomy of the homeland are the central topics of Leopold’s land ethics. Baird Callicott suggested to complete it with new metaphysical conceptions of space and time. -/- We formulated a metaphysical background for Leopold’s land ethics by phenomenology of space and time based on the Leibnizian conception of space-time. The latter is constructed by particular places and events called ´ecotopois´ embracing all human participants, locals and foreigners in a varying symbolic temporal and spatial field of dynamic process of identification and self consciousness. Adopting Warwick Fox´ transpersonal identification idea non-human life and landscape enriches these processes. Finally, it is not a matter of conquering the land, it is matter of making a community. -/- Though landscape and participants are particular, integrity and autonomy of the homeland claim the universal status of the land. Adopting Gadamer hermeneutical way of understanding, we reject mutual and equally understanding. Only acceptance of mutual prejudice makes room for asymmetric praxis between locals and foreigners as well as between humans and non-humans. What is more, Gadamer´s hermeneutics makes an ontological status of the foreigner possible and recognizes the interest of homeland’s particularity. This universal status is guaranteed as a priori space-time that links subject’s tradition and that of the land to actual contact with the foreigner. Transpersonal identification is a consequence of converging hermeneutical understanding of foreigner’s particularity and that of the landscape. Ethics of the land evolves from the ethical status of any foreigner in the own homeland. -/- . (shrink)

In 1720, Willem Jacob ’s Gravesande wrote Physicis elementa mathematica, experimentis confirmata. Sive introductio ad philosophiam Newtonianam. Although he was undoubtedly one of the most important popularizers of Newtonian physics, experimental methodology and epistemology in the 1720s, his empirical claim somehow backfired: in applying tenets of Newtonian methodology, he was ultimately led to validate the Leibnizian principle of the conservation of living forces, contrary to the Newtonians. This conclusion invited a great deal of anger, particularly from Samuel Clarke who, (...) in a volume of the Philosophical Transactions of the Royal Society from 1729, accused ’s Gravesande of having written the book with the aim of “darkening Newton’s philosophy”. In a reply, which ’s Gravesande published as a supplement to his Essay upon a New Theory of the Collision of Bodies, he developed a hybrid methodology that relied upon both experimentation and reason. In my paper, I shall thoroughly analyse this interesting combination. (shrink)

Dogmatic Metaphysics and Tschirnhaus's M ethodology MARTIN SCHONFELD ACCORDING TO STANDARD COMMENTARIES, Tschirnhaus's main work, Medicina mentis, ~ supposedly furnished the methodological basis for the Leibnizian-Wolffian metaphysics. ~ Christian Wolff and his disciples, at any rate, preferred to think so. Wolff taught classes on Tschirnhaus and claimed that he had developed his own tenets on the basis of Tschirnhaus's ideas; Johann Christoph Gottsched praised the Medicina mentis as the basic methodology of the Wolffian enlightenment.3 Mirroring these views, (...) W. Wundt and H. J. de Vleeschauwer saw in Tschirnhaus the inventor of the "geometric method" adopted by the School Philosophers.4 According to M. ' Medicina Mentis, sive Tentamen genuinae Logicae, in qua disseritur de Methodo detegendi incoKaitas veritates, Amsterdam, 1687. Second and revised edition, Medicina Mentis, sive Artis inveniendi Praecepta generalia, Leipzig, 1695. ~For example, cf. Wilhelm Windelband, Geschichte der Philosophie, 3~o-33 and 356; Friedrich Ueberweg, Grundriss der Geschichte der Philosophie, III: ~95-97, 3 x~ 34o-43; A. Robert Caponigri, A History of Western Philosophy (Notre Dame/London: University of Notre Dame.. (shrink)

In considering Kant’s response to the Leibnizian theory of space in the Transcendental Aesthetic, scholars have overwhelmingly emphasized Kant’s response to Leibniz’s relationalism. They have largely missed the metaphysically realistic aspects of Leibniz’s theory with which Kant is primarily concerned. As such, scholars have failed to appreciate the threat Leibniz’s theory poses to Kant’s idealism, a point made publicly as early as 1786 by H. A. Pistorius. I argue that the Aesthetic does indeed contain a compelling argument against the (...) Leibnizian theory of space. This argument crucially depends upon Kant’s claim that space is monistic: that the whole of space is prior to the parts of space and, as such, spatial representations are not decomposable. (shrink)

The book's aim is to give a working representation of what metaphysics is today. The historical contributions reveal the roots of metaphysical themes and how today's methods are linked to their Aristotelian and Leibnizian past. The volume also touches on the relationships between ontological and linguistic analysis, the questions of realism and ontological commitment, the nature of abstract objects, the existential meaning of particular quantification, the primitiveness of identity, the question of epistemic versus ontological vagueness, the necessity of (...) origin, the nature of natural necessity, the possibility of intermittent existence, the notion of a temporal part and its place in an account of persistence, the question of identity and change across time and possible worlds, and many more. Readership: A toolbox for any researcher in metaphysics and an essential source for any PhD student with ontological interests. (shrink)

The category of metaphysical evil introduced by Leibniz appears to cast a sinister shadow over the goodness of creation. It seems to imply that creatures, simply in virtue of not being gods, are to some degree intrinsically and inescapably evil. After briefly unpacking this difficulty and outlining a recent attempt to deal with it, this paper returns to the texts to propose a novel and multilayered understanding of Leibniz’s category of metaphysical evil by reading it against the backdrop of the (...) traditional typologies of evil with which he was unquestionably familiar. It comes to the conclusion that metaphysical evil plays two key roles for Leibniz. First, it captures what Aquinas and especially Suarez meant by ‘natural evil’. Contrary to the common assumption that it is Leibniz’s category of physical evil that holds the place of natural evil, the paper shows that Leibniz’s physical evil corresponds to Augustine’s category of evil of punishment for sin whereas natural evil – intended as a kind of evil which is not related to moral responsibility -- is subsumed under metaphysical evil. Secondly, the category of metaphysical evil covers also the notion of original creaturely imperfection. In classifying creaturely limitation as a kind of evil Leibniz breaks from the Augustinian-Thomist-Scholastic tradition and its distinction between negatio and privatio. On the other hand, notwithstanding this important break, Leibniz’s notion of metaphysical evil is intended to account for something which is firmly within the broadly Augustinian-Scholastic tradition, namely the ascription to all creatures of a limitation that stems from their being created ex nihilo. Finally, the paper returns a verdict of non-guilty to the charge that Leibniz’s metaphysical evil implies that creatures qua creatures are to some extent necessarily intrinsically evil. More generally, in typical Leibnizian fashion, the notion of metaphysical evil will appear to be a complex mix of indebtedness to tradition and bending of received doctrines into something significantly different. (shrink)

Much has been made of Deleuze’s Neo-Leibnizianism,3 however not very much detailed work has been done on the specific nature of Deleuze’s critique of Leibniz that positions his work within the broader framework of Deleuze’s own philo- sophical project. The present chapter undertakes to redress this oversight by providing an account of the reconstruction of Leibniz’s metaphysics that Deleuze undertakes in The Fold. Deleuze provides a systematic account of the structure of Leibniz’s metaphys- ics in terms of its mathematical (...) underpinnings. However, in doing so, Deleuze draws upon not only the mathematics developed by Leibniz – including the law of continuity as reflected in the calculus of infinite series and the infinitesimal calculus – but also the developments in mathematics made by a number of Leibniz’s contemporaries – including Newton’s method of fluxions – and a number of subsequent developments in mathematics, the rudiments of which can be more or less located in Leibniz’s own work – including the theory of functions and singularities, the theory of continuity and Poincaré’s theory of automorphic functions. Deleuze then retrospectively maps these developments back onto the structure of Leibniz’s metaphysics. While the theory of continuity serves to clarify Leibniz’s work, Poincaré’s theory of automorphic functions offers a solution to overcome and extend the limits that Deleuze identifies in Leibniz’s metaphysics. Deleuze brings this elaborate conjunction of material together in order to set up a mathematical idealization of the system that he considers to be implicit in Leibniz’s work. The result is a thoroughly mathematical explication of the structure of Leibniz’s metaphysics. What is provided in this chapter is an exposition of the very mathematical underpinnings of this Deleuzian account of the structure of Leibniz’s metaphysics, which, I maintain, subtends the entire text of The Fold. (shrink)

The direct proof of transcendental idealism, in the Transcendental Aesthetic of Kant's First Critique, has borne the brunt of enormous criticism. Much of this criticism has arisen from a confusion regarding the epistemological nature of the arguments Kant proposes with the alleged ontological conclusions he draws. In this paper I attempt to deflect this species of criticism. I concentrate my analysis on the Metaphysical Expositions of Space and Time. I argue that the argument form of the Metaphysical Expositions is that (...) of disjunctive syllogism and that Kant's primary target of attack is that of Leibnizian relativism. I provide a detailed analysis and reconstruction of the arguments of the Metaphysical Expositions, defending Kant against various claims of argumentative invalidity and incoherence. I conclude by identifying what can properly be inferred regarding the ontological nature of space and time, given my reconstructions of the arguments, and by suggesting the manner in which Kant can deflect objections from the other major proponent of transcendental realism, namely, Newtonian absolutism. (shrink)

Four years after completing his Ph.D. on “The Psychology of Kant,” one of Peirce’s most famous students, John Dewey, published a compendium of Leibniz’s main theses, his 1888 Leibniz’s New Essays.1 Such a move from critical to pre-critical rationalism seems to echo Peirce’s judgment that to fully understand Kant, a thorough familiarity with Leibniz’s philosophy is an indispensable preliminary (N 2:186, 1899); for Kant himself “was reposing in a firm belief in the metaphysics of Leibnitz as theologized by Wolff (...) when he first read the book of Hume.” (W 1:104, 1863) Peirce himself started his reflection with the study of Kant’s thought. The purpose of the present paper is to demonstrate that his actual implicit.. (shrink)

A central doctrine of Leibniz’s Theodicy is the classification of evils as metaphysical, physical and moral. Moral evil is sin; physical evil is suffering; and metaphysical evil, Leibniz says, is “simple imperfection”. It has been common-place in Leibniz scholarship to understand metaphysical evil as identical with the Leibnizian notion of the “original imperfection of the creature,” or the limitation which inevitably characterizes any created substance. This is Russell’s interpretation; and its pervasiveness is no doubt due to the powerful influence (...) which Russell’s Leibniz book has exercised in this century. In my paper I challenge this interpretation. (shrink)

Kant was engaged in a lifelong struggle to achieve what he calls in the 1756 Physical Monadology (PM) a “marriage” of metaphysics and geometry (1:475). On one hand, this involved showing that metaphysics and geometry are complementary, despite the seemingly irreconcilable conflicts between these disciplines and between their respective advocates, the Leibnizian-Wolffians and the Newtonians. On the other hand, this involved defining the terms of their union, which meant among other things, articulating their respective roles in grounding (...) Newtonian natural science. In this paper, consider how Kant’s project of marrying metaphysics and geometry evolves from the pre-Critical to the Critical period and how key discussions in the Prolegomena are related to the lifelong marriage project. (shrink)

The notion of force is at the heart of Leibniz’s metaphysics. One of his central theses is that powers are to be reconceived as forces. Connectedly, he maintains that force is essential to the very account of substance. The paper contends that these claims have not been well-understood due to an inadequate understanding of the notion of force itself. Against a common reading, I argue that Leibnizian force is not fundamentally dispositional, but an activity. Taking seriously this idea (...) means reconsidering not only the nature and function of powers, but also the basic character of Leibniz’s metaphysics—including his view of substances as soul-like and as causally independent. This paves the way for a novel interpretation of the unity of physical and metaphysical forces. (shrink)

In the introduction to Substance and Individuation in Leibniz, Jan Cover and John Hawthorne inform us that the aim of the book is to “grasp more clearly the metaphysical problems of individuation by taking seriously how these are played out in the hands of one influential philosopher standing as the important mediary between scholastic and modern philosophers.” Were the book to succeed in this modest aim it would be a significant achievement. In fact, it achieves this aim and a good (...) deal more. One can fairly say that the book is nothing short of a philosophical tour de force of most major metaphysical themes in Leibniz. (shrink)

1. Introduction It is generally assumed that, during his early pre-critical phase, Kant accepted a Leibnizian account of freedom according to which we are free to do otherwise than we do even though our actions are determined. This assumption is false. Far from endorsing such an account, Kant explicitly argues in the New Elucidation of the First Principle of Metaphysical Cognition that there is no relevant sense in which we can do otherwise than we do. Nevertheless, he is equally (...) convinced that we are free and responsible for our actions. And so he concludes that we can be responsible for what we do even if we could not have done otherwise. Little attention, however, has been paid to this argument. This is unfortunate, since a better understanding of this stage in Kant's theory of freedom would surely help us in understanding the later critical developments. This paper seeks to remedy this deficiency. (shrink)

The problem I tackle in this article is: Do we have in Scotus a modal logic or a counterpart theory? We need to take a rather roundabout path to handle this problem. This is because, whether it be in Lewis's original formulation or in others' applications, the crucial concept of 'counterpart' has never been clearly explicated. In section two, I shall therefore examine the recent controversy concerning Leibniz's views on modalities which centers around the counterpart relation. By fully exploiting the (...) lessons learned from such an examination, I shall then launch a trilemma against a Leibnizian in section three. Section four shall make the claim that unlike Leibniz's case, Scotus's position is not endangered by the trilemma. One important premise will be adopted from my thesis presented elsewhere regarding the different between Scotus's haecceitas and Leibniz's individual essence. Another will be secured from a brief report on Scotus's views on similarity, which might be utterly original to modern eyes jaundiced by contemporary set theories. (shrink)

A central doctrine of Leibniz’s Theodicy is the classification of evils as metaphysical, physical and moral. Moral evil is sin; physical evil is suffering; and metaphysical evil, Leibniz says, is “simple imperfection”. It has been common-place in Leibniz scholarship to understand metaphysical evil as identical with the Leibnizian notion of the “original imperfection of the creature,” or the limitation which inevitably characterizes any created substance. This is Russell’s interpretation; and its pervasiveness is no doubt due to the powerful influence (...) which Russell’s Leibniz book has exercised in this century. In my paper I challenge this interpretation. (shrink)

Seventeen essays make up the body of this anthology. Most of the authors are Latin Americans (although some of them work in other regions), and thus we might say that this volume is, in a very approximate sense, a showcase of recent Latin-American ontology and metaphysics. The remaining authors—Pierre Aubenque, Barry Smith, Lorenzo Peña and James Hamilton—are distinguished teachers who have had important contacts with the Latin-American philosophical community. The articles in this anthology address some of the central questions (...) in ontology and metaphysics: the possibility of a science of being (Aubenque), the different possible approaches to ontology (Hurtado), the recent application of ontology to informatics (Smith), guise theory and its Leibnizian antecedents (Herrera), the reduction of space and time to phenomenological properties (Rodríguez Larreta), the Newtonian ontology of space and time (Benítez and Robles), the relation between truth and the so-called “truth-makers” (Rodríguez Pereyra), the ontological position of the Pyrrhonic skeptic (Junqueira Smith), the limits and difficulties of metaphysical realism (Cabanchik, Pereda), the defense of physicalist or emergentist positions regarding the mental (Pérez), the metaphysical nature of persons (Naishtat), the ontology of cultural entities (Peña), political ontology (Nudler), the relation between ontology and literature (Hamilton), the ontology of art (Tomasini). Some of the works (e.g., those Aubenque and Robles) approach the question from a historical perspective: others examine the most recent philosophical literature on the problems focalized (e.g., those by Pérez and Rodríguez Pereyra), and others offer new approaches (e.g., those of Rodríguez Larreta, Peña or Nudler) to a specific problematic area. (shrink)