The recent philosophy of physics is confronted with the new ontology, as it emerges after philosophy proper has fully articulated the linguistic turn. The classical ontologists asserted or denied, controversially, that certain entities "existed." Rather than adding to these controversies, the new ontology uncovers their dialectics. The ontologically problematic entities of physics are of two kinds, represented by forces and particles, respectively. The dialectics has been dominated by eight patterns. Two of these, independence and realism, belong to philosophy proper. The (...) latter is here considered in order to relieve the philosophy of physics of a burden only philosophy proper can bear. That leaves six patterns: concreteness (including the orbit feature), acquaintance, simplicity, significance, process, and model. The paper sketches how each of these may be used and probably has been used, either explicitly or implicitly, in the recent controversies. (shrink)

The present paper purports partly to reexamine and partly to summarize several points which occupied and still occupy a central position in more recent discussions among empiricist philosophers. As such discussions are essentially attempts at the clarification of terms, it might also be said that this essay intends to contribute to the analysis of certain very general and highly ambiguous expressions. The words in question are, first and mainly, ‘hypothetical’ and, more incidentally or by the way of exposition, ‘atomic', ‘elementaristic', (...) and ‘extensional.’ In general, it is an attempt to show the impact of some of the ideas developed in the work of Carnap; within a prevailingly logical frame of reference in The Logical Syntax of Language and, in a more epistemological setting, in Testability and Meaning. In particular, it wants to eliminate some ambiguities which could arise from an oversimplified reading of certain passages in TM, as for instance: “If by verification is meant definitive and final establishment of truth, then no sentence is ever verifiable”. If this passage is understood to assert that every synthetic sentence is hypothetical, then it is either false or several meanings of ‘hypothetical’ are to be distinguished. This distinction, implicit in TM, will upon closer examination prove to be related to the fundamental distinction between statements within and statements about a linguistic structure. (shrink)