On E.E. Constance Jones’s Account of Categorical Propositions and Her Defence of Frege

What is it about?

It has been claimed that E.E. Constance Jones anticipated Frege's distinction between sense and reference. This is questioned. It is argued that her account of categorical propositions does involve ideas similar to his distinction between concept and object, but unlike him, and like Carnap, she operates with a single intension/extension dichotomy.

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Why is it important?

E.E. Constance Jones's logical insights have been unjustly neglected while Frege's have been mis-interpreted, this paper attempts to rectify both misfortunes.