# A proof-verification is a duplicate? [duplicate]

I asked the community to check my proof for correctness.

After reading a comment today I believe the proof is not correct. But I can't do anything because my question was closed as a duplicate.

It is not clear to me how my proof is a duplicate. The proof in the other thread is not the same. The person made different mistakes.

Is it possible to reopen my question? I really need help...

• For what is worth, I see no mistakes in your proof. You might want to argue more carefully why $e^{2\pi i (k-j)/n}=1$ implies $k=j$, for example noting that $2\pi$ is the least positive real number for which $e^{it}=1$. You can even take this as the definition of $2\pi$. – Pedro Tamaroff Mar 3 '15 at 6:17