Abstract

This chapter presents a thorough analysis of Neurath’s physicalist syntacticism. It explores connections between syntacticism and other elements of Neurath’s philosophy such as the unity of science and the sociological imperative of empiricism. It also defends the intelligibility of syntacticism. Finally, the case is made that Neurath’s fear of semantics was warranted: logical empiricism was undermined to a large extent by the widespread acceptance of semantics.