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Questions
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Is there a relational countable ultra-homogeneous structure whose countable substructures do not have the amalgamation property?

jul 29 11 at 19:08 Ali Enayat 4,459●1●9●23

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Continuous choice of Hahn-Banach extensions

nov 29 11 at 19:05 Bill Johnson 14.3k●1●33●60

 
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Results regarding $E[\min X,Y]$. when $X$ and $Y$ are independent, of given distributions.

sep 11 at 14:06 Kevin O'Bryant 6,442●1●27●54

 
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A restatement, in terms of the semi-group product of the left-invariant completion of a Polish group, of http://mathoverflow.net/questions/71389

jul 30 11 at 11:49 Itaï BEN YAACOV 365●1●6

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Seeking reference - criterion for the existence of a positive linear functional on an ordered vector space below a given function

jul 25 11 at 14:20 Matthew Daws 5,489●1●8●28