Static Maxwell-Einstein continuum mechanical gravitoelectromagnetic total stress energy momentum density tensor eigenvector matrix configuration space, provides flux for time dependent quantum mechanical eigenvalue matrix operator observables via Dirac-Noether conserved angular momentum probability current symmetry. Fundamental quantum continuum
equation returns eigenvalues of photon gravitoelectromagnetic spectrum in units of Maxwell stress tensor pascals. Energization of off-diagonal stress tensor components results in electron-positron (moment of inertia x angular velocity) angular momentum origin of particle wave mass charge eigenvalues. In thought experiment test vs. general (...) theory via pp-waves microlensing problem, where light-to-light gravitational attraction is four times matter-to-matter attraction, hypothesis predicts null result in area general theory known to break down on microscopic scale.
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Descartes claims that God is a substance, and that mind and body are two different and separable substances. This paper provides some background that renders these claims intelligible. For Descartes, that something is real means it can exist in separation, and something is a substance if it does not depend on other substances for its existence. Further, separable objects are correlates of distinct ideas, for an idea is distinct (in an objective sense) if its object may be easily and clearly (...) separated from everything that is not its object. It follows that if our idea of God is our most distinct idea, as Descartes claims, then God must be a substance in the Cartesian sense of the term. Also, if we can have an idea of a thinking subject which does not in any sense refer to bodily things, and if bodily things are substances, then mind and body must be two different substances. (shrink)

Substance: Its Nature and Existence investigates the very nature and existence of individual substances, including both living things and inanimate objects. It provides an accessible introduction to the history and contemporary debates of this important and often complex issue. Starting with a critical survey of the main historical attempts by Aristotle, Descartes, Spinoza, Locke and Hume to provide an analysis of substance, the authors present the view that a substance must satisfy an independence condition which could not be satisfied by (...) an insubstantial entity. Throughout the book, the authors also consider problems for the notion of substance raised by the unity of the parts of organisms and explore the problem of how we can actually know what kinds of physical substance there are. (shrink)

This book revives a neglected but important topic in philosophy: the nature of substance. The belief that there are individual substances, for example, material objects and persons, is at the core of our common-sense view of the world yet many metaphysicians deny the very coherence of the concept of substance. The authors develop a novel account of what an individual substance is in terms of independence from other beings. In the process many other important ontological categories are explored: property, event, (...) space, time. The authors show why alternative theories of substance fail, and go on to defend the intelligibility (though not the existence) of interacting spiritual and material substances. (shrink)

E. J. Lowe, a prominent figure in contemporary metaphysics, sets out and defends his theory of what there is. His four-category ontology is a metaphysical system which recognizes four fundamental categories of beings: substantial and non-substantial particulars and substantial and non-substantial universals. Lowe argues that this system has an explanatory power which is unrivaled by more parsimonious theories and that this counts decisively in its favor. He shows that it provides a powerful explanatory framework for a unified account of causation, (...) dispositions, natural laws, natural necessity and many other related matters, thus constituting a full metaphysical foundation for natural science. (shrink)

Lowe argues in this fascinating new study that metaphysics should be restored to centrality in philosophy, as the most fundamental form of inquiry, whose findings underpin those of all other disciplines. He portrays metaphysics as charting the possibilities of existence, by identifying the categories of being and the relations between them. He then sets out his own metaphysical system, with which he seeks to answer many of the most vexed questions in philosophy.

: Descartes maintained substance dualism, the thesis that no substance has both mental and material properties. His main argument for this thesis, the so-called separability argument from the Sixth Meditation (AT VII: 78) has long puzzled readers. In this paper I argue that Descartes’ independence conception of substance (which Descartes presents in article 51 of the Principles) is crucial for the success of the separability argument and that Descartes used this conception of substance to defend his argument for substance dualism (...) from an important objection. (shrink)

The article is a critical examination of Joshua Hoffman’s and Gary Rosenkrantz’ approach to the traditional category of individual substance. On several places they offered an analysis of the concept of a substance in terms of some highly sophisticated notion of generic independence. Though ingenious, and even though it might be extensionally adequate, their account cannot provide an informative analysis of the concept in question, because it exhibits a peculiar kind of circularity. It is shown that one cannot establish, on (...) the basis of their analysis, that a given entity is a substance, if one does not already know that it is one in advance. The circularity of their account is examined in detail, and it is explained how it could have arisen. (shrink)

The main contribution of this paper is a novel account of ontological dependence. While dependence is often explained in terms of modality and existence, there are relations of dependence that slip through the mesh of such an account. Starting from an idea proposed by Jonathan Lowe, the article develops an account of ontological dependence based on a notion of explanation; on its basis, certain relations of dependence can be established that cannot be accounted by the modal-existential account. Dependence is only (...) one of two main topics of this paper, for it is approached via a discussion of the category of substance. On a traditional view, substances can be characterised as independent entities. Before the background of a modal-existential account of dependence, this idea appears problematic. The proposed notion of explanatory dependence is shown to vindicate the traditional approach to substance. (shrink)

Just how far can externalism go? In this exciting new book Ruth Millikan explores a radically externalist treatment of empirical concepts (Millikan 2000). For the last thirty years philosophy of mind’s ties to meaning internalism have been loosened. The theory of content has swung uncomfortably on its moorings in a fickle current, straining against opposing ties to mind and world. In this book Millikan casts conceptual content adrift from the thinker: what determines the content of a concept is not cognitively (...) accessible. She has only the stanchion of the world to hold her theory fast. She hopes that the tide will turn, and the theory of meaning will come stably to rest downstream of this anchor. This book is a bold exploration of how that might be achieved. (shrink)

This article spells out the reasons for calling God a substance and argues that theism nevertheless does not require substance ontology. It is compatible with an alternative ontology which I call stuff ontology.

About the ontology of the Polish philosopher Roman Ingarden, as presented in his treatise 'The Controversy about the Existence of the World'.