. book manuscript in preparation. [9] A. Einstein. (1990) Grundz uge der Relativitantheorie. Braunschweig: Vieweg (originally Vier Vorlesungen ubcr Relativitatstheoric, 1922: the talks were given in 1921). See Alexander Afriat Ermenegildo Caccese. The relativity of inertia and reality of nothing. p 8. philsci-arch