Hi

I have a proof for a Lemma which splits into an odd and even case.

The proof for the even case was already published by someone else in a different context and the proof for for the odd case is very similar (but not trivial) to the even case proof.

So how should I now proceed about the odd case proof? Is it ok if I make it clear that the odd case proof closely follows the idea of the even case proof, published by someone else?