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Apr 13, 2017 at 12:58 history edited CommunityBot
replaced http://mathoverflow.net/ with https://mathoverflow.net/
Feb 26, 2016 at 17:09 comment added Tristan Bice Certainly is, although I guess you should always expect the unexpected with the Calkin algebra.
Feb 26, 2016 at 17:03 comment added Nik Weaver Yes, I see. It is kind of surprising, isn't it?
Feb 26, 2016 at 16:51 comment added Tristan Bice Sure, I guess you might call this the dual exact pair property. But it still serves as an alternative to (countable) completeness, with pairs replacing single least upper bounds.
Feb 26, 2016 at 15:36 comment added Nik Weaver So this is kind of like the opposite of what was asked for, is that the idea?
Feb 26, 2016 at 15:02 history answered Tristan Bice CC BY-SA 3.0