(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

If the spacetime interval (delta S)^2 > 0, show that delta t=deltaS/c is the proper time between the two events.

2. Relevant equations

Can anyone please explain to me how I should be approaching this problem. I have been working on it for a while with no success. I was able to do the problem before it easily, which was "use Lorentz' equations to prove that delta S is invariant", but this one is giving me trouble.

3. The attempt at a solution

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# Homework Help: Question about proper time

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