The no-miracles argument for realism and the pessimistic meta-induction for anti-realism pull in opposite directions. Structural Realism---the position that the mathematical structure of mature science reflects reality---relieves this tension.

SummaryenThe main argument for scientific realism is that our present theories in science are so successful empirically that they can't have got that way by chance - instead they must somehow have latched onto the blueprint of the universe. The main argument against scientific realism is that there have been enormously successful theories which were once accepted but are now regarded as false. The central question addressed in this paper is whether there is some reasonable way to have the best (...) of both worlds: to give the argument from scientific revolutions its full weight and yet still adopt some sort of realist attitude towards presently accepted theories in physics and elsewhere. I argue that there is such a way - through structural realism, a position adopted by Poincare, and here elaborated and defended. (shrink)

A straightforward ontological account would be one which acknowledges relations as real beings, and that means, according to the scholastic tradition, as universals. The realist move in this sense which has been re-established within contemporary analytical ontology at least since Russell's early theory, is, however, not the only possible way to take relations seriously. In my paper I shall argue that there is much room for the ontological reconstruction of relations, even if one does not accept universals. The background for (...) this argument is a particularist and realist theory, based on tropes ("trope" being the short name for "property instance" or "individual quality"). One way of reconstruction is that relations themselves are particulars. They are supposed to be relational or polyadic tropes (J. Bacon, D. Mertz). The other way is to hold that relations are internal or formal, and therefore do not require a category sai generis (K. Mulligan, P. Simons). I shall discuss these alternatives and finally opt for the second, i.e., the reconstruction of relations as internal to their relata. Moreover, I offer an argument for why basic relations such as existential dependence should be granted a transcategorial status within trope ontology. Hence, the gist of my paper is to take relations seriously without falling prey either to stubborn nominalism or to strict realism. What I intend to explore is a middle avenue thereby choosing the best of both sides in order to explicate a moderate view on the realism of relations. (shrink)

D. W. Mertz provides a "new" competitor in the universals debate by reviving, developing, and defending the medieval doctrine of Moderate Realism. This book is a substantial contribution to ontology and logic, combining interesting new arguments for polyadic relations and unit attributes, careful and thorough historical studies, and a logic that could solve many old problems.

Objects and Persons presents an original theory about what kinds of things exist. Trenton Merricks argues that there are no non-living inanimate macrophysical objects -- no statues or rocks or chairs or stars -- because they would have no causal role over and above the causal role of their microphysical parts. Humans do exist: we have non-redundant causal powers. Along the way, Merricks has interesting things to say about mental causation, free will, and various philosophical puzzles. Anyone working in metaphysics (...) will enjoy this lucid and provocative book. (shrink)

Logical Atomism is a philosophy that sought to account for the world in all its various aspects by relating it to the structure of the language in which we articulate information. In _The Philosophy of Logical Atomism,_ Bertrand Russell, with input from his young student Ludwig Wittgenstein, developed the concept and argues for a reformed language based on pure logic. Despite Russell’s own future doubts surrounding the concept, this founding and definitive work in analytical philosophy by one of the world’s (...) most significant philosophers is a remarkable attempt to establish a novel way of thinking. (shrink)

Wigner famously referred to the `unreasonable effectiveness' of mathematics in its application to science. Using Wigner's own application of group theory to nuclear physics, I hope to indicate that this effectiveness can be seen to be not so unreasonable if attention is paid to the various idealising moves undertaken. The overall framework for analysing this relationship between mathematics and physics is that of da Costa's partial structures programme.

We outline Ladyman's 'metaphysical' or 'ontic' form of structuralrealism and defend it against various objections. Cao, in particular, has questioned theview of ontology presupposed by this approach and we argue that by reconceptualisingobjects in structural terms it offers the best hope for the realist in thecontext of modern physics.

What does it mean to embed the phenomena in an abstract structure? Or to represent them by doing so? The semantic view of theories runs into a severe problem if these notions are construed either naively, in a metaphysical way, or too closely on the pattern of the earlier syntactic view. Constructive empiricism and structural realism will then share those difficulties. The problem will be posed as in Reichenbach's The Theory of Relativity and A Priori Knowledge, and realist reactions will (...) be examined, but they will be argued to dissolve upon scrutiny. (shrink)

Combinations of molecules, of biological individuals, or of chemical processes can produce effects that are not simply attributable to the constituents. Such non-redundant causality warrants recognition of those coherences as ontologically significant whenever that efficacy is relevant. With respect to such interaction, the effective coherence is more real than are the components. This ontological view is a variety of structural realism and is also a kind of process philosophy. The designation ‘process structural realism’ (PSR) seems appropriate.

Milk, sand, plastic, uranium, wood, carbon, and oil are kinds of stuff. The sand in Hawaii, the uranium in North Korea, and the oil in Iraq are portions of stuff. Not everyone believes in portions of stuff.1 Those who do are likely to agree that, whatever their more specific natures, portions of stuff can at least be identified with mereological sums of their subportions.2 It seems after all trivial that a given portion of stuff just is all of its subportions (...) combined—not by a spatiotemporal or any other substantive unifying relation, but by a mere principle of summation, a principle requiring that, if some things exist, there exists the sum, or collection, of those things. (shrink)

Da Costa and French explore the consequences of adopting a 'pragmatic' notion of truth in the philosophy of science. Their framework sheds new light on issues to do with belief, theory acceptance, and the realism-antirealism debate, as well as the nature of scientific models and their heuristic development.

Religion in Late Modernity runs against the grain of common suppositions of contemporary theology and philosophy of religion. Against the common supposition that basic religious terms have no real reference but are mere functions of human need, the book presents a pragmatic theory of religious symbolism in terms of which the cognitive engagement of the Ultimate is of a piece with the cognitive engagement of nature and persons. Throughout this discussion, Neville develops a late-modern conception of God that is defensible (...) in a global theological public. Against the common supposition that religion is on the retreat in late modernity except in fundamentalist forms, the author argues that religion in our time is a stimulus to religiously oriented scholarship, a civilizing force among world societies, a foundation for obligation in politics, a source for healthy social experimentation, and the most important mover of soul. (shrink)

Applying the rules and systems of mathematics and logic to instance ontology, this work argues for the validity and problem-solving capacities of instance ontology, and associates it with a version of the realist position which is named by the author as moderate realism.

Truths are determined not by what we believe, but by the way the world is. Or so realists about truth believe. Philosophers call such theories correspondence theories of truth. Truthmaking theory, which now has many adherents among contemporary philosophers, is the most recent development of a realist theory of truth, and in this book D. M. Armstrong offers the first full-length study of this theory. He examines its applications to different sorts of truth, including contingent truths, modal truths, truths about (...) the past and the future, and mathematical truths. In a clear, even-handed and non-technical discussion he makes a compelling case for truthmaking and its importance in philosophy. His book marks a significant contribution to the debate and will be of interest to a wide range of readers working in analytical philosophy. (shrink)

A straightforward ontological account would be one which acknowledges relations as real beings, and that means, according to the scholastic tradition, as universals. The realist move in this sense which has been re-established within contemporary analytical ontology at least since Russell's early theory, is, however, not the only possible way to take relations seriously. In my paper I shall argue that there is much room for the ontological reconstruction of relations, even if one does not accept universals. The background for (...) this argument is a particularist and realist theory, based on tropes. One way of reconstruction is that relations themselves are particulars. They are supposed to be relational or polyadic tropes. The other way is to hold that relations are internal or formal, and therefore do not require a category sai generis. I shall discuss these alternatives and finally opt for the second, i.e., the reconstruction of relations as internal to their relata. Moreover, I offer an argument for why basic relations such as existential dependence should be granted a transcategorial status within trope ontology. Hence, the gist of my paper is to take relations seriously without falling prey either to stubborn nominalism or to strict realism. What I intend to explore is a middle avenue thereby choosing the best of both sides in order to explicate a moderate view on the realism of relations. (shrink)