Metaphysicians speak of laws of nature in terms of necessity and universality; scientists, in terms of symmetry and invariance. In this book van Fraassen argues that no metaphysical account of laws can succeed. He analyzes and rejects the arguments that there are laws of nature, or that we must believe there are, and argues that we should disregard the idea of law as an adequate clue to science. After exploring what this means for general epistemology, the author develops the empiricist (...) view of science as a construction of models to represent the phenomena. (shrink)

This is a study of a crucial and controversial topic in metaphysics and the philosophy of science: the status of the laws of nature. D. M. Armstrong works out clearly and in comprehensive detail a largely original view that laws are relations between properties or universals. The theory is continuous with the views on universals and more generally with the scientific realism that Professor Armstrong has advanced in earlier publications. He begins here by mounting an attack on the orthodox and (...) sceptical view deriving from Hume that laws assert no more than a regularity of coincidence between instances of properties. In doing so he presents what may become the definitive statement of the case against this position. Professor Armstrong then goes on to establish his own theory in a systematic manner defending it against the most likely objections, and extending both it and the related theory of universals to cover functional and statistical laws. This treatment of the subject is refreshingly concise and vivid: it will both stimulate vigorous professional debate and make an excellent student text. (shrink)

v. 1. Nominalism and realism.--v. 2. A theory of universals.

A transcript of three lectures, given at Princeton University in 1970, which deals with (inter alia) debates concerning proper names in the philosophy of language.

Causation: A Realist Approach Traditional empiricist accounts of causation and laws of nature have been reductionist in the sense of entailing that given a complete specification of the non-causal properties of and relations among particulars, it is therefore logically determined both what laws there are and what events are causally related. It is argued here, however, that reductionist accounts of causation and of laws of nature are exposed to decisive objections, and thus that the time has come for empiricists to (...) break with that tradition. -/- The basic goal of this book, therefore, is to set out and defend realistic accounts of those concepts. In the case of causal relations, for example, Tooley maintains that causation is basically a matter of theoretical relations between states of affairs that underlie and explain relative frequencies. He also argues that such an approach avoids the objections that tell against reductionist accounts and that it does so without making causal relations epistemologically inaccessible. (shrink)

Quentin Smith offers powerful arguments against the New Theory of Reference propounded by leading thhinkers in the philosophy of language. Smith defends the tensed theory of time and argues that the simultaneity is absoltue, basing this position on the theory that all propositions exist in time. Using detailed propostitions and a theory of cognitive significance, he introduces an alternative interpretation of reference that will be relevant to metaphysicians, philosophers of science and philosophers of language and may come to be recognised (...) as the definitive statement on the tensed theory of time. (shrink)

This paper is concerned with the question of the truth conditions of nomological statements. My fundamental thesis is that it is possible to set out an acceptable, noncircular account of the truth conditions of laws and nomological statements if and only if relations among universals - that is, among properties and relations, construed realistically - are taken as the truth-makers for such statements. My discussion will be restricted to strictly universal, nonstatistical laws. The reason for this limitation is not that (...) I feel there is anything dubious about the concept of a statistical law, nor that I feel that basic laws cannot be statistical. The reason is methodological. The case of strictly universal, nonstatistical laws would seem to be the simplest case. If the problem of the truth conditions of laws can be solved for this simple subcase, one can then investigate whether the solution can be extended to the more complex cases. I believe that the solution I propose here does have that property, though I shall not pursue that question here.1. (shrink)

The aim of this paper is to show that the definition of a possible world in the actualist tradition of A. Plantinga, R.M. Adams, R. Chisholm, J. Pollock and N. Wolterstorff is unable to accomodate tensed states of affairs. An example of a tensed state of affairs is the transiently obtaining state of affairs that the storm is present, which obtains only if its negation, it is not the case that the storm is present also obtains but at different times. (...) A possible world that includes tensed states of affairs and their negations cannot be defined in the traditional way, which states that a possible world is a state of affairs S that includes every state of affairs S' or (exclusive disjunction) the negation of S'. Rather, it must be defined in a new way: A possible world is a state of affairs S that includes every state of affairs S' or (inclusive disjunction) the negation of S', such that for every pair P of mutually contradictory tensed states of affairs entailed by S, the members of P obtain nonsimultaneously in S. (shrink)

The aim of this paper is to show that the definition of a possible world in the actualist tradition of A. Plantinga, R.M. Adams, R. Chisholm, J. Pollock and N. Wolterstorff is unable to accomodate tensed states of affairs. An example of a tensed state of affairs is the transiently obtaining state of affairs that the storm is present, which obtains only if its negation, it is not the case that the storm is present also obtains but at different times. (...) A possible world that includes tensed states of affairs and their negations cannot be defined in the traditional way, which states that a possible world is a state of affairs S that includes every state of affairs S' or (exclusive disjunction) the negation of S'. Rather, it must be defined in a new way: A possible world is a state of affairs S that includes every state of affairs S' or (inclusive disjunction) the negation of S', such that for every pair P of mutually contradictory tensed states of affairs entailed by S, the members of P obtain nonsimultaneously in S. (shrink)

18 Probability and confirmation* The story of deductive logic is well known. Until the beginning of the nineteenth century, deductive logic as a subject was ...

It is widely agreed that constant conjunction is a necessary condition for a proposit'2on such as 'Every A is a B' being a law) That is each A is also a B (where A and B are kinds of events, objects states of affairs, or whatever) or the property of being an A is always conjoined with the property of being a B. It is also widely agreed that this cannot be the whole story. How can we distinguish accidental generalisations (...) from laws? Why is it that 'Every massive object attracts every other massive object' is taken as a law, while 'Every golden object is less than a million kilograms (say) in mass' is not? Both are true universally, do not make reference to particular entities or places or times, and so on and so forth, and yet they are given vastly different ontological and/or epistemic status. This is the problem of laws. (shrink)

The paper considers recent proposals by Armstrong, Dretske, and Tooley that revive the view that statements of laws of nature are grounded by the existence of higher order facts relating universals. Several objections to such a view are raised and an alternative analysis, recognizing general facts, is considered. Such an alternative is shown to meet a number of the objections raised against the appeal to higher order facts and it is also related to views of Hume and Wittgenstein. Further objections (...) are then raised to all the non-Humean "realist" attempts to provide special facts to ground the laws of nature. (shrink)

It is a traditional empiricist doctrine that natural laws are universal truths. In order to overcome the obvious difficulties with this equation most empiricists qualify it by proposing to equate laws with universal truths that play a certain role, or have a certain function, within the larger scientific enterprise. This view is examined in detail and rejected; it fails to account for a variety of features that laws are acknowledged to have. An alternative view is advanced in which laws are (...) expressed by singular statements of fact describing the relationship between universal properties and magnitudes. (shrink)

First published in 1985, D. M. Armstrong's original work on what laws of nature are has continued to be influential in the areas of metaphysics and philosophy of science. Presenting a definitive attack on the sceptical Humean view, that laws are no more than a regularity of coincidence between stances of properties, Armstrong establishes his own theory and defends it concisely and systematically against objections. Presented in a fresh twenty-first-century series livery, and including a specially commissioned preface written by Marc (...) Lange, illuminating its continuing importance and relevance to philosophical enquiry, this influential work is available for a new generation of readers. (shrink)