# Ruffini-Abelian theorem paper.

I am currently reading a paper which treats Abel’s original proof of Ruffini-Abelian theorem but I got stuck on a theorem at the beginning of the paper.

I understand the argument prior to theorem 1, but I don’t understand why the argument just before theorem 1 indeed proves it.

The link of the original paper:

On the Ruffini-Abelian Theorem