Helen Beebee

‘Natural kind essentialism’—here defined as the view that (i) the existence of natural kinds is a mind- and theory-independent matter, (ii) their essences are intrinsic, and (iii) they have a hierarchical structure—is commonly thought to be justified by appeal to Kripke–Putnam semantics, according to which propositions like ‘water is H20’ are necessary a posteriori. This chapter argues that the Kripke–Putnam semantics is in fact compatible with the denial of each of the three tenets of natural kind essentialism. The basic argument is that, assuming the range of natural kinds goes beyond those kinds for which we have vernacular names, deference to scientific theories is required in fixing the reference of natural kind terms. That those theories describe mind- and theory-independent reality, and that they do not admit a non-hierarchical structure for the categories they deploy, are theses that are independent of anything derivable from Kripke–Putnam semantics itself.

This collection brings together key contemporary texts in metaphysics and features an interactive commentary which helps readers engage the texts critically and to use them to develop their own views. Each text is followed by a detailed commentary, setting it in context Includes questions designed to help readers think hard about what the author is saying and why, to think of objections, and to formulate his or her own views Aims to improve the reader’s ability to engage critically with philosophical texts, and to use them as a springboard for philosophical thought and writing Introduces readers to the perennial problems of metaphysics and the ways that different analytic philosophers have approached them.

In a recent paper (Bird 2001), Alexander Bird argues that the law that common salt dissolves in water is metaphysically necessary - and he does so without presupposing dispositionalism about properties. If his argument were sound, it would thus show that at least one law of nature is meta- physically necessary, and it would do so without illicitly presupposing a position (dispositionalism) that is already committed to a necessitarian view of laws. I shall argue that Bird's argument is unsuccesful.

The paper considers whether psychiatric kinds can be natural kinds and concludes that they can. This depends, however, on a particular conception of ‘natural kind’. We briefly describe and reject two standard accounts – what we call the ‘stipulative account’ (according to which apparently a priori criteria, such as the possession of intrinsic essences, are laid down for natural kindhood) and the ‘Kripkean account’ (according to which the natural kinds are just those kinds that obey Kripkean semantics). We then rehearse a more permissive account: Richard Boyd’s ‘homeostatic property cluster’ (HPC) account. We argue that psychiatric kinds can in principle count as natural kinds on the HPC account. Moreover, specific psychiatric kinds (Tourette’s, schizophrenia, etc.) can be natural kinds even if the category psychiatric disorder is not itself a natural kind.

Humean compatibilism is the combination of a Humean position on laws of nature and the thesis that free will is compatible with determinism. This article's aim is to situate Humean compatibilism in the current debate among libertarians, traditional compatibilists, and semicompatibilists about free will. We argue that a Humean about laws can hold that there is a sense in which the laws of nature are 'up to us' and hence that the leading style of argument for incompatibilism?the consequence argument?has a false premiss. We also display some striking similarities between Humean compatibilism and libertarianism, an incompatibilist view. For example, standard libertarians face a problem about luck, and we show that Humean compatibilists face a very similar problem.

Hume is traditionally credited with inventing the ‘regularity theory’ of causation, according to which the causal relation between two events consists merely in the fact that events of the first kind are always followed by events of the second kind. Hume is also traditionally credited with two other, hugely influential positions: the view that the world appears to us as a world of unconnected events, and inductive scepticism: the view that the ‘problem of induction’, the problem of providing a justification for inference from observed to unobserved regularities, is insoluble. Hume on Causation is the first major work dedicated to Hume’s views on causation in over fifteen years, and it argues that Hume does not subscribe to any of these three views. It places Hume’s interest in causation within the context of his theory of the mind and his theory of causal reasoning, arguing that Hume’s conception of causation derives from his conception of the nature of the inference from causes to effects.

According to ‘regularity theories’ of causation, the obtaining of causal relations depends on no more than the obtaining of certain kinds of regularity. Regularity theorists are thus anti-realists about necessary connections in nature. Regularity theories of one form or another have constituted the dominant view in analytic Philosophy for a long time, but have recently come in for some robust criticism, notably from Galen Strawson. Strawson’s criticisms are natural criticisms to make, but have not so far provoked much response from regularity theorists. The paper considers and rebuts Strawson’s objections. For example, Strawson claims that if there were no necessary connections in nature, we ought continually to find the regularity of the Universe surprising. I argue that the fact that the Universe is regular is something we take ourselves (fallibly) to know, and hence, in the light of this knowledge, its continued orderliness is not at all surprising.