Full Idea
Frege was completing Bolzano's work, of expelling intuition from number theory and analysis (while leaving it its due place in geometry).
Gist of Idea
Frege was completing Bolzano's work, of expelling intuition from number theory and analysis
Source
report of Gottlob Frege (Grundlagen der Arithmetik (Foundations) [1884]) by Michael Dummett - Frege philosophy of mathematics Ch.18
Book Reference
Dummett,Michael: 'Frege: philosophy of mathematics' [Duckworth 1991], p.223
A Reaction
It was Kant who had placed the emphasis on intuition. Frege eventually thought arithmetic might be geometric, and so intuition had to triumph after all.