The language of modalities is … a “transposed” language of norms. … Modal terms, normative terms and psychological terms are mutually irreducible. … The “means” of semantical statements…is no more a psychological word than is the “ought” of ethical statements or the “must” of modal statements
— Inference and Meaning Section 5
- Related to this quote.
- What is the connection between the (alethic) modal sense of must and the normative sense of must?
- Carnap uses ‘transposed’ to talk about an unquoted word used in a sentence as a
transposed mode of speech (about use of a quoted-word).
- “Red is a quality.” vs “‘Red’ is a one-place predicate.”
- “All ’s are necessarily ’s”. vs the license to infer statements from statements.