Locally inertial coordintates in GR refer to spacetime, not only to space, right?(adsbygoogle = window.adsbygoogle || []).push({});

Are they only defined for events, for spacetime points, so that when a particle is freely falling it passes through infinitely many such locally lorentz frames?

But if so, how can we say that the particle runs straight lines in each locally inertial frame?

???

thank you

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# Local lorentz

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