Article Hill, Claire Ortiz; (1994)
Frege's attack on Husserl and Cantor (/isis/citation/CBB000043998/)

Article Simons, Peter M.; (1987)
Frege's theory of real numbers (/isis/citation/CBB000033293/)

Book Belna, Jean-Pierre; (1996)
La notion de nombre chez Dedekind, Cantor, Frege: Théories, conceptions et philosophie (/isis/citation/CBB000074591/)

Article Mark Textor; (2021)
Saying Something about a Concept: Frege on Statements of Number (/isis/citation/CBB227044624/)

Article Schirn, Matthias; (2013)
Frege's Approach to the Foundations of Analysis (1874--1903) (/isis/citation/CBB001212887/)

Book Wright, Crispin; (1983)
Frege's conception of numbers as objects (/isis/citation/CBB000000224/)

Article Belna, Jean-Pierre; (1997)
Les nombres réels: Frege critique de Cantor et de Dedekind (/isis/citation/CBB000072831/)

Article Wagner, Steven; (1983)
Frege's definition of number (/isis/citation/CBB000010926/)

Article David Sullivan; (2016)
Frege's ‘On the Concept of Number’ (1891) – an Unnoticed Publication (/isis/citation/CBB330707483/)

Article Lavers, Gregory; (2013)
Frege, Carnap, and Explication: “Our Concern Here Is to Arrive at a Concept of Number Usable for the Purpose of Science” (/isis/citation/CBB001212885/)

Book Schüler, Wolfgang; (1983)
Grundlegungen der Mathematik in transzendentaler Kritik: Frege und Hilbert (/isis/citation/CBB000007451/)

Thesis David E. Dunning; (2020)
Writing the Rules of Reason: Notations in Mathematical Logic, 1847–1937 (/isis/citation/CBB517005733/)

Article Hunter, David A.; (1996)
Definition in Frege's Foundations of arithmetic (/isis/citation/CBB000072012/)

Article Belna, Jean Pierre; (2002)
Frege et la géométrie projective: la Dissertation inaugurale de 1873 (/isis/citation/CBB000770938/)

Book Resnik, Michael D.; (1980)
Frege and the philosophy of mathematics (/isis/citation/CBB000006573/)

Article Yourgrau, Palle; (1997)
What is Frege's relativity argument? (/isis/citation/CBB000072682/)

Book Frege, Gottlob; (1999)
Zwei Schriften zur Arithmetik: Funktion und Begriff; Ueber die Zahlen des Herrn H. Schubert. Hrsg. von Kienzler, Wolfgang (/isis/citation/CBB000082256/)

Article Belna, Jean-Pierre; (2006)
Objectivité et principe de dualité: Le paragraphe 26 des Fondements de l'arithmétique de Frege (/isis/citation/CBB000770988/)

Book Ricketts, Tom; Potter, Michael D.; (2010)
The Cambridge Companion to Frege (/isis/citation/CBB001211647/)

Article Centrone, Stefania; (2010)
Functions in Frege, Bolzano and Husserl (/isis/citation/CBB001210980/)