The previous post on Goldbach's Conjecture is unfortunately falsehood, a simplified 'proof' but on the same line of argument is,
All primes are odd, let,
2n1+1=p
and
2n2+1=q
so p+q=2(n1+n2+1)=2n
where n=n1+n2+1.
The actual proof needed is that n spans all integer greater than 2.