Meaning of 'Ought'

The word ''ought'' is one of the core normative terms, but it is also a modal word. In this book Matthew Chrisman 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. This is a metanormative account that agrees with traditional descriptivist theories in metaethi...