First published in 2000. Routledge is an imprint of Taylor & Francis, an informa company.

Glymour's account of confirmation is seen to have paradoxical consequences when applied to the confirmation of theories containing theoretical functions. An alternative conception of instances derived from Sneed's reconstruction of physical theories is conjoined with the instance view of confirmation to produce an account of confirmation that avoids these problems. The topic of selective confirmation is discussed, and it is argued that theories containing theoretical functions are not selectively confirmable.

Als eine wesentliche Schwäche des strukturalistischen Theorienkonzepts musste die Vagheit erscheinen, mit der die Unterscheidung zwischen bezüglich einer Theorie theoretischen und nichttheoretischen Funktionen bisher belastet war. In der vorliegenden Untersuchung wird ein formal präzises, pragmatisch nichtrelativiertes Kriterium für T-Theoretizität vorgestellt. Erste Schritte zur Klärung seiner Bedeutung für die holistische Sichtweise erfahrungswissenschaftlicher Theorien werden unternommen.

In place of earlier instrumentalist and phenomenalist interpretations of science both Quine and Sellars have developed highly influential realist positions centering around the doctrine that accepting a theory as explanatory and irreducible rationally entails accepting the entities posited by the theory. A growing reaction against this realism is partially based on perceived inadequacies in the doctrines of Quine and Sellars, but even more on reconstructions of scientific explanations which do not involve such ontic commitments. Three types of anti-realistic positions are (...) considered and criticized. Hesse's neo-Duhemian position couples a statistical theory of inference to a downgrading of purely theoretical statements. Sneed uses the method of axiomatrization through set-theoretic predicates to supply a reconstruction of Kuhn's account of scientific development. Here Ramsey-reduction sentences serve to eliminate purely theoretical terms. The longest section deals with van Fraassen's semantic model based on a state-space representation of scientific theories and the use of this model in interpreting quantum mechanics. It is argued that the model is valuable, but that the anti-realist interpretation accorded it is not justified and entails serious inconsistencies. (shrink)

The aim of this paper is to discuss the relation between the observation basis and the theoretical principles of General Relativity. More specifically, this relation is analyzed with respect to constructive axiomatizations of the observation basis of space-time theories, on the one hand, and in attempts to complete them, on the other. The two approaches exclude one another so that a choice between them is necessary. I argue that the completeness approach is preferable for methodological reasons.