The conventionality of simultaneity in Einstein's practical chrono-geometry



Published 14-06-2017
Mario Bacelar Valente


While Einstein considered that sub specie astern the correct philosophical position regarding geometry was that of the conventionality of geometry, he felt that provisionally it was necessary to adopt a non-conventional stance that he called practical geometry. here we will make the case that even when adopting Einstein's views we must conclude that practical geometry is conventional after all. Einstein missed the fact that the conventionality of simultaneity leads to a conventional element in the chrono-geometry, since it corresponds to the possibility of different space-time metrics (which, when changing, accordingly, the "physical part" of the theory, are observationally equivalent).

How to Cite

Bacelar Valente, M. (2017). The conventionality of simultaneity in Einstein’s practical chrono-geometry. THEORIA. An International Journal for Theory, History and Foundations of Science, 32(2), 177–190.
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practical geometry, conventionality of geometry, conventionality of simultaneity