The word 'ought' is one of the core normative terms, but it is also a modal word. This book develops a careful account of the semantics of 'ought' as a modal operator and uses this to motivate a novel inferentialist account of why ought-sentences have the meaning that they have.…
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Mark Schroeder explores the semantic commitments of metaethical expressivism, the heir to the noncognitivist theories of Ayer Stevenson, and Hare. He shows how to solve many of the open problems facing expressivism, but this only highlights further and deeper problems for the vi…