Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1161260 | Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics | 2011 | 6 Pages |
A theorem due to Geroch and Jang (1975) provides a sense in which the geodesic principle has the status of a theorem in General Relativity. I have recently shown that a similar theorem holds in the context of geometrized Newtonian gravitation (Newton–Cartan theory) (Weatherall, J.O., 2011). Here I compare the interpretations of these two theorems. I argue that despite some apparent differences between the theorems, the status of the geodesic principle in geometrized Newtonian gravitation is, mutatis mutandis, strikingly similar to the relativistic case.
► Explores the status of inertial motion in geometrized Newtonian gravitation and GR. ► Argues that in both theories, the geodesic principle has the status of a theorem. ► Concludes that if GR explains inertial motion, so does Newtonian gravitation.