SUPERVENIENCE, DETERMINATION, AND DEPENDENCE

Abstract:   I show how existing concepts of supervenience relate to two more fundamental ontological relations: determination and dependence. Determination says that the supervenient properties of a thing are a function of its base properties, while dependence says that having a supervenient property implies having a base property. I show that most varieties of supervenience are either determination relations or determination relations conjoined with dependence relations. In the process of unpacking these connections I identify limitations of existing concepts of supervenience and provide ways of overcoming them. What results is a more precise, flexible, and powerful set of tools for relating sets of properties than current concepts of supervenience provide. I apply these tools to a recalcitrant problem in the physicalism literature – the problem of extras.     

PRESENTISM,TRUTH AND SUPERVENIENCE

Truthmaker theory is commonly thought to pose a challenge for presentism. Presentism seems to lack the ontological and ideological resources required to adequately underwrite the truth of propositions concerning the past. That is because if presentism is true, then the past does not exist. According to the standard response to this challenge, the truth of propositions concerning the past supervenes on surrogate entities that ‘stand proxy’ for past things. I argue that in order for the standard response to the truthmaker challenge to succeed these surrogate entities must stand in necessary connections to the past. I go on to argue that because the standard response is already committed to denying the existence of cross‐temporal modal connections of this kind, by its own lights that response is in error. 1     

EXPRESSIVISM AND MORAL CERTITUDE

Michael Smith has recently argued that non-cognitivists are unable to accommodate crucial structural features of moral belief, and in particular that non-cognitivists have trouble accounting for subjects' certitude with respect to their moral beliefs. James Lenman and Michael Ridge have independently constructed 'ecumenical' versions of non-cognitivism, intended to block this objection. We argue that these responses do not work. If ecumenical non-cognitivism, a hybrid view which incorporates both non-cognitivist and cognitivist elements, fails to meet Smith's challenge, it is unlikely that 'purer' and more familiar versions of non-cognitivism will succeed.     

SUPERVENIENCE AND MORAL REALISM

Simon Blackburn has developed an interesting challenge to moral realism based on its alleged inability to account for supervenience relations between the moral and nonmoral. If supervenience holds, then any base property once giving rise to a supervening one must always do so. The realist accepts supervenience, but also (according to Blackburn) accepts the claim that nonmoral base properties do not necessitate the moral ones that supervene on them. This combination is thought deadly, because it leaves the realist without an explanation of why ethical supervenience should be true. I offer three responses on behalf of the moral realist. The first rejects the need for explanation, arguing that supervenience should be understood as closely analogous to Leibniz's law, which, I argue, needs no defense. I next argue that ethical naturalism may be right, and if so, would provide an adequate response to Blackburn. Lastly, I show that the success of Blackburn's arguments implies a global antirealism, and so does not, as he claims, amount to a special problem for realism in ethics.     

PHYSICALISM, SUPERVENIENCE AND THE FUNDAMENTAL LEVEL

We provide a formulation of physicalism, and show that this is to be favoured over alternative formulations. Much of the literature on physicalism assumes without argument that there is a fundamental level to reality, and we show that a consideration of the levels problem and its implications for physicalism tells in favour of the form of physicalism proposed here. Its key elements are, first, that the empirical and substantive part of physicalism amounts to a prediction that physics will not posit new entities solely for the purpose of accounting for mental phenomena, nor new entities with essentially mental characteristics such as propositional attitudes or intentions; secondly, that physicalism can safely make do with no more than a weak global formulation of supervenience.     

HUMEAN SUPERVENIENCE AND PERSONAL IDENTITY

Humeans hold that the nomological features of our world, including causal facts, are determined by the global distribution of fundamental properties. Since persistence presupposes causation, it follows that facts about personal identity are also globally determined. I argue that this is unacceptable for a number of reasons, and that the doctrine of Humean supervenience should therefore be rejected.     

NON-COGNITIVISM,TRUTH AND LOGIC

Philosophical Studies -     

LOGIC AND GRAMMAR

I have written a number of articles recently that have a rather remarkable character. They all point out trivial grammatical facts that, at great cost, have not been respected in twentieth century Logic. A major continuous strand in my previous work, with this same character, I will first summarise, to locate the kind of fact that is involved. But then I shall present an overview of the more recent and more varied points I have made, which demonstrate the far larger extent of basic grammar that has been overlooked or suppressed. I end with some remarks about how this phenomenon can have arisen – principally through logicians not being attentive enough to their own language, and occupying themselves, instead, with often quite imaginary languages.