Parfit’s Metaphysics and What Matters in Survival
Issue: Issue 09 • Author/s: Eric Olson
Topics: Metaphysics
Derek Parfit takes the central principle of his discussions of personal identity to be “reductionism”: that our existence and persistence are not basic facts, but consist in something else. A number of striking claims, including the famous unimportance of identity, are supposed to follow from it. But they don’t follow. The main principle in Parfit’s arguments is something far more contentious that is never mentioned: a capacious ontology of material things. But the capacious ontology makes trouble for Parfit: it weakens his claim about the unimportance of identity and undermines…
In Defense of Irreducible Relations [Special Issue]
Issue: Issue 16 • Author/s: Francesco Orilia, Michele Paolini Paoletti
Topics: Epistemology, Logic, Metaphysics, Ontology, Philosophy of language
At least since Russell, mainstream analytic philosophy has distinguished internal and external relations and acknowledged the existence of both. This seems in line with both the manifest and scientific images of the world. However, there is a recent deflationary trend about relations, which focuses on the truthmakers of relational statements in order to show that putative external relations are in fact internal, and that internal relations do not really exist. Lowe’s posthumous 2016 paper is a thorough presentation of this line of thought. This article critically analyzes Lowe’s arguments in…
Hume’s Law, Moore’s Open Question and Aquinas’ Human Intellect
Issue: Issue 06 • Author/s: Augusto Trujillo Werner
Topics: Epistemology, Ethics, Ontology, Theoretical philosophy
This article concerns Aquinas’ practical doctrine on two philosophical difficulties underlying much contemporary ethical debate. One is Hume’s Is-ought thesis and the other is its radical consequence, Moore’s Open-question argument. These ethical paradoxes appear to have their roots in epistemological scepticism and in a deficient anthropology. A possible response to them can be found in that a) Aquinas defends the substantial unity and rationality of the human being; b) Thomistic natural law is a natural consequence of the rational being; c) Thomistic human intellect is essentially theoretical and practical at…
Reconsidering an Ontology of Properties for Quantum Theories [Special Issue]
Issue: Issue 16 • Author/s: Emanuele Rossanese
Topics: Epistemology, Logic, Metaphysics, Ontology, Philosophy of science
Da Costa, Lombardi and Lastiri (2013) have proposed an ontology of properties for non-relativistic quantum mechanics within the structure of the modal-Hamiltonian interpretation of the theory. Recently, this proposal has been developed in order to discuss the nature of entanglement and indistinguishability in such an ontology (Fortin and Lombardi 2022) and to explain how particles emerge from an ontology of properties (Lombardi and Dieks 2016). Oldofredi (2021) has also proposed an ontology of properties for Relational Quantum Mechanics. The aim of my paper is then to discuss an ontology of…