I know the proof that
- if the radical of Q is maximal, then Q is primary.
I don't have the reference to confirm this, so I'm putting it for now. (Otherwise, I will forget.) -- Taku (talk) 00:10, 23 February 2009 (UTC)
The link to primal is incorrect, it point to algebraic geometry definition of primal, which is out of context. —Preceding unsigned comment added by 220.127.116.11 (talk) 06:45, 30 May 2010 (UTC)