Explicating structural realism in the framework of the structuralist metatheory

Abstract

A form of structural realism affirms that, when our theories change, what is always retained is their structural content and that there is structural continuity between our theories, even through radical theory change. I first introduce and discuss structural realism, with a focus on structural realism and change theory. Then, I will consider some critiques on structural realism. In order to address them, I introduce the framework of the so-called structuralist metatheory and allude to the notion of reduction, arguing that this notion provides the formal elucidation of the notion structural continuity. This aims to get a precise notion of continuity of structure, which is central to structural realism and to the understanding of theory change. In this sense, I propose a new way of formulating structural realism in an appropriate formal framework, namely, the framework of structuralist metatheory.