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Added by: Laura JimenezAbstract: In this paper the author discusses and evaluates different arguments for the view that the laws of nature are metaphysically necessary. She conclude that essentialist arguments from the nature of natural kinds fail to establish that essences are ontologically more basic than laws, and fail to offer an a priori argument for the necessity of all causal laws. Similar considerations carry across to the argument from the dispositionalist view of properties, which may end up placing unreasonable constraints on property identity across possible worlds. None of her arguments preclude the possibility that the laws may turn out to be metaphysically necessary after all, but she argues that this can only be established by a posteriori scientific investigation. She argues for what may seem to be a surprising conclusion: that a fundamental metaphysical question - the modal status of laws of nature - depends on empirical facts rather than purely on a priori reasoning.
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Added by: Christopher MastermanAbstract:
This paper outlines a defense of hybrid contingentism: that it is contingent which individuals there are, but not contingent what properties there are. Critics pursue two main lines of complaint. First, that the hybrid contingentist’s treatment of haecceitistic properties is metaphysically mysterious, and second, that hybrid contingentism involves an unjustified asymmetry in the associated modal logic. I suggest that these complaints may be too quick, at least in the setting of higher-order metaphysics. It is not at all obvious whether and to what extent we should expect particular "symmetries" across the orders, and so whether (as Williamson (2013) argues) “the default preference is for a uniform metaphysics, on which being is contingent at all orders or none.”
Comment: This article is perfect for any advanced course (masters or higher) on modal logic and metaphysics, particularly if the course covers issues in contingentism vs. necessitism debate, or issues higher-order metaphysics more broadly. This article is a good replacement for Lukas Skiba's article "In Defence of Hybrid Contingentism".
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Added by: Christopher MastermanAbstract:
Analytic philosophy in the mid-twentieth century underwent a major change of direction when a prior consensus in favour of extensionalism and descriptivism made way for approaches using direct reference, the necessity of identity, and modal logic. All three were first defended, in the analytic tradition, by one woman, Ruth Barcan Marcus. But analytic philosophers now tend to credit them to Kripke, or Kripke and Carnap. I argue that seeing Barcan Marcus in her historical context – one dominated by extensionalism and descriptivism – allows us to see how revolutionary she was, in her work and influence on others. I focus on her debate with Quine, who found himself retreating to softened, and more viable, versions of his anti-modal arguments as a result. I make the case that Barcan's formal logic was philosophically well-motivated, connected to her views on reference, and well-matched to her overall views on ontology. Her nominalism led her to reject posits which could not be directly observed and named, such as possibilia. She conceived of modal calculi as facilitating counterfactual discourse about actual existents. I conclude that her contributions ought to be recognized as the first of their kind. Barcan Marcus must be awarded a central place in the canon of analytic philosophy.
Comment: This would be excellent supplementary reading for a course in modal logic or metaphysics which incorporated the work of Ruth Barcan Marcus. Clearly discusses her contribution to modal logic and metaphysics and discusses the history of this period of philosophy in depth.
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Added by: Christopher MastermanAbstract:
Vetter's Potentiality is an exposition and development of a new account of possibility and necessity, given in terms of potentialities. In this critical notice, I give an outline of some of the key claims of the book. I then raise some issues for the extent to which Vetter's view can accommodate genuine de re modalities, especially those of possible existence and non-existence.
Comment: Would work excellently in conjunction with Vetter's Potentiality (OUP), particularly in any undergraduate or masters course on modality which incorporates discussion of dispositionalist views of modality.
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Added by: Emily PaulAbstract: This paper describes motivations for the view that some objects have essential properties: properties which they must have in any world/situation where they exist (without qualification). I raise objections to the motivations for so-called ``hardcore essentialism''. And I articulate and defend an alternative theory: explanation-relative essentialism.
Comment: Very useful for an intermediate Metaphysics course. Could be good to include this reading after teaching about modality, as a way to apply possible worlds talk to a new topic: are there certain properties that objects/entities must have in every possible world, in order to be that very object/entity? It could also be useful to teach de re/de dicto necessity first.
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Added by: Christopher MastermanAbstract:
Comment: This article would work well in any masters course, or advanced undergraduate course, covering the metaphysics of logic of modality, particularly Williamson's views on these topics. This is a good replacement for Philip Bricker's article "The Methodology of Modal Logic as Metaphysics" which covers the same topic.
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Added by: Christopher MastermanPublisher’s Note:
Philosophical theories often hinge on claims about what is necessary or possible. But what are possibilities and necessities, and how could we come to know about them? This book aims to help demystify the methodology of philosophy, by treating such claims not as attempted descriptions of strange facts or distant 'possible worlds', but rather as ways of expressing rules or norms.
Comment: Excellent addition to any course on modal metaphysics which wants to incorporate non-descriptive approaches to modality. Chapter 1 is a particularly good historical overview of conventionalism about modality and perfect for a more introductory course. Chapters 2 - 5 focuses on outlining Thomasson's own view and discusses objections and would be perfect for a more detailed or advanced course. Similarly with Chapters 6 - 8 which discuss the ontological, epistemological and methodology advantages of her view.
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Added by: Laura JimenezPublisher's Note: This book develops and defends dispositionalism about modality: the view that metaphysical modality is a matter of the dispositions that objects have. Dispositionalism is an attractive view for actualists about modality, and for anyone who embraces an anti-Humean metaphysics of powers. This book shows in detail how such a view is to be formulated, which challenges it faces, and how they may be met. The metaphysics of potentiality is examined in detail to show that the view meets the three main challenges for a metaphysics of modality: (1) Extensional correctness: providing the right truth-values for statements of possibility and necessity; (2) formal adequacy: providing the right logic for metaphysical modality; and (3) semantic utility: providing a semantics that links ordinary modal language to the metaphysics of modality.
Comment: The book develops the dispositionalist view in a way that takes account of contemporary developments in metaphysics, logic, and semantics. It can be used as a main reading in metaphysics and as further reading in many other fields. Excellent for anything from an introductory course in modal metaphysics to an advanced course. Chapters 1 - 3 are a particularly useful introduction to dispositionalist accounts of modality, criticisms of standard possible worlds accounts, and Vetter's particular potentialist account.
Comment: An excellent paper that could serve as further or specialized reading for postgraduate courses in philosophy of science, in particular, for modules related to the study of the laws of nature. The paper offers an in-depth discussion of essentialist arguments, but also touches upon many other fundamental concepts such as grounding, natural kinds, dispositions and necessity.