On Saturday, October 8, 2016 at 12:14:23 PM UTC+2, Rob H. wrote:
>
> sage: var('A,B')
> sage: assume(A>1)
> sage: assume(B>A)
> sage: bool(2*B>A)
> False
>

Maxima 5.37.2:

(%i1) assume(a>1);
(%o1)                               [a > 1]
(%i2) assume(b>a);
(%o2)                               [b > a]
(%i3) is(2*b>a);
(%o3)                               unknown
 
SymPy:

In [4]: ask(Q.is_true(2*y>x), Q.is_true(x>1) & Q.is_true(y>x))

In [5]:

There is no SMT solver capability in Sage, nor its subsystems.
I know there are plans for this in SymPy. Plans we have too:
https://trac.sagemath.org/ticket/19162

Regards,

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