Full Idea
Frege took the study of concepts and their extensions to be within logic.
Gist of Idea
Frege took the study of concepts to be part of logic
Source
report of Gottlob Frege (Grundgesetze der Arithmetik 1 (Basic Laws) [1893]) by Stewart Shapiro - Foundations without Foundationalism 7.1
Book Reference
Shapiro,Stewart: 'Foundations without Foundationalism' [OUP 1991], p.177
A Reaction
This is part of the plan to make logic a universal language (see Idea 13664). I disagree with this, and with the general logicist view of the position of logic. The logical approach thins concepts out. See Deleuze/Guattari's horror at this.
Related Ideas
Idea 13664 Logicism is distinctive in seeking a universal language, and denying that logic is a series of abstractions [Shapiro]
Idea 8245 The logical attitude tries to turn concepts into functions, when they are really forms or forces [Deleuze/Guattari]