Abstract

Semantics may be said to be relevant to ontology in, at least, two ways: semantic considerations may pertain to meaning, or to justication of ontological statements. An ontological thesis may be given a semantic paraphrase, or only a semantic reason. The analysis of the doctrine of transcendental idealism provided by Ajdukiewicz illustrates the rst case. Its eect is a semantic paraphrase of the allegedly ontological idealistic thesis. In contradistinction to it, the exposition of the doctrine of reism as contained in Kotarbinski's work may serve as an example of the second case. Ascribing a genuinely ontological meaning to the reistic thesis, the author adduces for it reasons of explicitly semantic nature. It is on this case that I shall concentrate in the present paper. The problem is a general one. It pertains to the whole class of so-called reductionistic ontological doctrines, which, as a rule, are being justied in a similar way. Generally speaking, it is a way that involves an inference from the nature of language to the nature of the world. Let us analyze that kind of argumentation on the example of the reistic thesis