Abstract

It is argued that Frege might be properly interpreted as having employed a notion of _logical content_ — more fine-grained than his notion of _Bedeutung_ (extension) yet more course-grained than Sinn. Expressions have the same logical content, in this postulated translation for Frege’s ‘Erkenntniswerte’, if they are logically equivalent. Strictly synonymous expressions (those having the same sense) have the same logical content, but the converse is not generally true-else, for Frege, all mathematical truths would be the same “thought,” or proposition, e.g., that 2 is even and that e Π = -1.