Full Idea
For Frege, that arithmetic is essentially general, governing (applying to) everything, entails that its ultimate building blocks are purely logical.
Gist of Idea
Arithmetic must be based on logic, because of its total generality
Source
report of Gottlob Frege (Grundlagen der Arithmetik (Foundations) [1884]) by Robin Jeshion - Frege's Notion of Self-Evidence 2
Book Reference
-: 'Mind' [-], p.947
A Reaction
Put like that, it doesn't sound very persuasive. If any truth is totally general, then it must be purely logical?