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Apr 16, 2017 at 0:34 vote accept SeanC
Apr 16, 2017 at 0:34 comment added SeanC Thanks, that's great! Slightly more explicitly, given a minimal $I$ as you suggest, $Ann(I)$ is a maximal ideal of A. That's much simpler than I had expected.
Apr 15, 2017 at 21:51 history answered Eric Wofsey CC BY-SA 3.0