Meaning & Necessity: A Study in Semantics & Modal Logic

8vo, pp. viii, 210; original cloth in green printed dust jacket (back cover browned); chips and tears along jacket edges not affecting text, price on front flap has been clipped out; contemporary bookseller's ticket on front pastedown, interior fine. a foundational work in philosophy that develops a new method for analyzing meaning, focusing on intension and extension, and applies it to modal logic (necessity and possibility). Carnap argues against traditional views that treat expressions as naming entities, proposing instead that meaning is determined by a linguistic framework's conventions, distinguishing between the logical structure (intension) and the factual content (extension) of expressions. The book is known for its systematic approach, building on Frege, and its influence on logical positivism and philosophy of language.