Frege

Dale Jacquette was Senior Professorial Chair in Logic and Theoretical Philosophy at the University of Bern. His many publications included The Cambridge Companion to Brentano (Cambridge, 2004), the Blackwell Companion to Philosophical Logic (2005), and The Philosophy of Mind: The Metaphysics of Consciousness (2009).

1. Early life (1848–54); 2. Education through university days (1854–74); 3. Post-doctoral research and teaching (1874–9); 4. Frege's Begriffsschrift (1879) – ideal logical language; 5. The aftermath of Begriffsschrift to Grundlagen der Arithmetik (1880–4); 6. The logical foundations of number in Grundlagen (1884); 7. Professional advancement, marriage, and the quest for objectivity in a scientific theory of meaning (1885–92); 8. Sense, reference, and psychological epiphenomena in Frege's semantics (1892); 9. Frege's culminating masterwork - Grundgesetze der Arithmetik I, II (1893/1903); 10. Academic and personal life, the review of Husserl, mathematical and philosophical correspondence (1894–1902); 11. The crucible of logicism and the crisis of Russell's paradox (1902–4); 12. Personal tragedy and a philosophical hiatus (1904–17); 13. The late essays in philosophical logic – Logische Untersuchungen (1918–23); 14. The twilight years (1923–5) and Frege's enduring legacy in mathematical logic and philosophy.