Starting from the sixties of the past century theory change has become a main concern of philosophy of science. Two of the best known formal accounts of theory change are the post-Popperian theories of verisimilitude (PPV for short) and the AGM theory of belief change (AGM for short). In this paper, we will investigate the conceptual relations between PPV and AGM and, in particular, we will ask whether the AGM rules for theory change are effective means for approaching the truth, (...) i.e., for achieving the cognitive aim of science pointed out by PPV. First, the key ideas of PPV and AGM and their application to a particular kind of propositional theories - the so called "conjunctive propositions" - will be illustrated. Afterwards, we will prove that, as far as conjunctive propositions are concerned, AGM belief change is an effective tool for approaching the truth. (shrink)

The purpose of this study is to show that the distinctions made by Wilhelm Dilthey and Max Weber between the natural sciences and the 'Geisteswissen-schaften' are sound in principle, pace the arguments to the contrary within classical logical empiricism. It is held that intentional contexts are characteristic of social science. Intentional contexts are held to be more important in psychology than mental states, like toothache. If logical behaviourism is to have any plausibility, it has to be shown how intentional contexts (...) can be dealt with. Carnap's programme was to reconstruct scientific discourse within a truth-functional language. It is argued that his reduction of belief-sentences was not successful. It is further argued that in the logical empiricist's discussions of the problem of Verstehen, only motivational understanding is taken account of, what Max Weber calls observational understanding is overlooked as we try to show through a discussion of Theodore Abel's well-known explication of 'the operation called Verstehen'. From this it is concluded that the founda-tional problems of social science are different from those of natural science, and this conclusion is further elaborated through an exposition of views held by authors in the German tradition, which, in the fifties, many philosophers held to be obsolete. (shrink)

European Journal of Philosophy, EarlyView.

On présente ici une interprétation nominaliste des contextes linguistiques indirects comme « A dit que p » et « A croit que p ». L'approche est apparentée à celle de Donald Davidson, mais elle s'en écarte aussi de manière significative. Elle permet de résoudre certaines objections courantes contre l'élimination ontologique des types linguistiques abstraits ainsi que l'énigme célèbre formulée par Saul Kripke à propos de la notion de croyance.This paper presents a nominalistic interpretation of indirect linguistic contexts such as "A (...) says that p" and "A believes that p". The approach has some similarity with that of Donald Davidson, but it also significatively departs from it. It provides solutions to some standard objections against the ontological elimination of abstract linguistic types as well as to the famous puzzle raised by Saul Kripke about the notion of belief. (shrink)

Arthur Pap’s work played an important role in the development of the analytic tradition. This role goes beyond the merely historical fact that Pap’s views of dispositional and modal concepts were influential. As a sympathetic critic of logical empiricism, Pap, like Quine, saw a deep tension in logical empiricism at its very best in the work of Carnap. But Pap’s critique of Carnap is quite different from Quine’s, and represents the discovery of limits beyond which empiricism cannot go, where there (...) lies nothing other than intuitive knowledge of logic itself. Pap’s arguments for this intuitive knowledge anticipate Etchemendy’s recent critique of the model-theoretic account of logical consequence. Pap’s work also anticipates prominent developments in the contemporary neo-Fregean philosophy of mathematics championed by Wright and Hale. Finally, Pap’s major philosophical preoccupation, the concepts of necessity and possibility, provides distinctive solutions and perspectives on issues of contemporary concern in the metaphysics of modality. In particular, Pap’s account of modality allows us to see the significance of Kripke’s well-known arguments on necessity and apriority in a new light. (shrink)