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

Chapter Weiner, Joan; (2010)
Understanding Frege's Project (/isis/citation/CBB001211648/)

Chapter Haaparanta, Leila; (2009)
The Relations between Logic and Philosophy, 1874--1931 (/isis/citation/CBB001210347/)

Book Heijenoort, Jean van; (2002)
From Frege to Gödel: A Source Book in Mathematical Logic, 1879-1931 (/isis/citation/CBB000201415/)

Book Macbeth, Danielle; (2005)
Frege's Logic (/isis/citation/CBB001211035/)

Chapter Goldfarb, Warren; (2010)
Frege's Conception of Logic (/isis/citation/CBB001211649/)

Article Eder, Günther; (2013)
Remarks on Independence Proofs and Indirect Reference (/isis/citation/CBB001212142/)

Book Künne, Wolfgang; (2010)
Die Philosophische Logik Gottlob Freges: ein Kommentar; mit den Texten des Vorworts zu Grundgesetze der Arithmetik und der Logischen Untersuchungen I--IV (/isis/citation/CBB001210615/)

Chapter Vikko, Risto; (2009)
The Logic Question During the First Half of the Nineteenth Century (/isis/citation/CBB001210346/)

Article Ruschig, Ulrich; (2001)
Logic and chemistry in Hegel's philosophy (/isis/citation/CBB000101912/)

Article Weltya, Ivan; (2011)
Frege on Indirect Proof (/isis/citation/CBB001210988/)

Chapter Thiel, Christian; (2009)
Gottlob Frege and the Interplay between Logic and Mathematics (/isis/citation/CBB001210345/)

Article Macbeth, Danielle; (2012)
Diagrammatic Reasoning in Frege's Begriffsschrift (/isis/citation/CBB001211482/)

Thesis Guzman, Luis; (2002)
The fractured nature of thinking: Hegel's “Science of Logic” (/isis/citation/CBB001562169/)

Article Textora, Mark; (2013)
“Thereby We Have Broken with the Old Logical Dualism”---Reinach on Negative Judgement and Negation (/isis/citation/CBB001211948/)

Chapter Korte, Tapio; Maunu, Ari; Aho, Tuomo; (2009)
Modal Logic from Kant to Possible World Semantics (/isis/citation/CBB001210352/)

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

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

Article Günther Eder; (2021)
Frege on intuition and objecthood in projective geometry (/isis/citation/CBB221284966/)

Chapter Heck, Richard; (2010)
Frege and Semantics (/isis/citation/CBB001211655/)