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Aug 26, 2013 at 4:28 vote accept Gregory Crosswhite
Aug 14, 2013 at 6:44 answer added Nik Weaver timeline score: 5
Aug 14, 2013 at 6:19 history edited Gregory Crosswhite CC BY-SA 3.0
Clarified that the operators in the proper cones are _hermitean_.
Aug 14, 2013 at 5:19 history asked Gregory Crosswhite CC BY-SA 3.0