Beginning from Rudolf Carnap’s well known thesis that ontological commitment is internal to linguistic frameworks, I argue that this view can be considerably enriched by exploring the varied, and sometimes complex, relations between frameworks. In this paper, I set out the basic features of these relations between frameworks – a relativity of frameworks. Those features are illustrated by showing how they apply to two of the most debated issues in metaphysics and their related semantics: the status of fictional objects and the analysis of true negative existence statements.
