About · Hans Halvorson

Hans Halvorson

Stuart Professor of Philosophy at Princeton University, associated faculty in mathematics, and research professor at the University of Copenhagen. I work on the foundations of physics, logic and the structure of scientific theories, and the Scandinavian philosophical tradition behind Niels Bohr.

Fall 2026 office hours: Wednesdays, 1:30–2:20 pm.

Publications

Books

Essays

Work in progress

Talks

Curriculum vitae

Recent publications

Bohr's epistemological lesson of quantum physics. In How to Understand Quantum Mechanics: 100 years of Ongoing Interpretations (Springer) (2026).PhilPapers
Niels Bohr: Physicist-Philosopher in Action. In La philosophie des physiciens, XXe-XXIe siècles (2026).PhilPapers
The point of departure: Bohr's ‘The unity of human knowledge (1960)’. In Can we understand the world? (Ergon Verlag) (2026).
Deterministic theories. Philosophy and Phenomenological Research (2026). With J.B. Manchak and James Owen Weatherall.DOI arXiv

All publications →

Recent talks

Er musste das Wissen aufheben: van Fraassen on the priority of the manifest image

Schock Prize Symposium · Stockholm · June 2026

pdf html qmd

Equivalence: A Program

Conference on theoretical equivalence · Oslo · June 2026

pdf

Updating your religion

Reunions · Princeton · May 2026

pdf tex

Niels Bohr on causal explanation

5th International Conference on the History of Quantum Physics · August 2025

pdf

All talks →

Projects

Niels Bohr: Philosopher in Action

Kierkegaard

Danish Texts

Equivalent Theories

Spacetime

Logic Tools

Free software for learning symbolic logic, written to accompany How Logic Works. Check a natural-deduction proof line by line, build a truth table, or evaluate a sentence in a finite structure. You can also photograph a proof you wrote by hand and have it read and checked. No account, nothing to install.

What the tools do

Open the tools

Solutions, addenda and code

Find me

ORCID

Google Scholar

PhilPeople

Semantic Scholar

Scopus

Web of Science