Yes, an onion _does_ submit to a partial order if you use polar coordinates. On 06/12/2017 10:52 AM, Nick Thompson wrote: > At the risk of being dumb, I would say that when we peal an onion we get > layers; when we slice an onion, we get cross-sections; is there any way we > can get a "level" out of an onion? -- ☣ glen