>
> n = var('n',domain='integer')
> res = solve([n^2 == 3],n); print "res = ",res
>
> returns the weird answer :
>
> res =  [
> n == -sqrt(3),
> n == sqrt(3)
> ]
>
>
 But
sage: assume(n,'integer')
sage: solve(n^2-3,n)
[]

so it seems variable domains are not interpreted
as assumptions.

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