Latex of ConditionSet gives 'FiniteSet' object has no attribute 'as_expr'

[JMSS-Unknown]

Solving
sol = nonlinsolve([(sin(a*x)),cos(a*x)],[x,a])
gives
ConditionSet((x, a), {sin(a*x), cos(a*x)}, Complexes(Reals x Reals, False))
calling
latex(sol)
outputs
AttributeError: 'FiniteSet' object has no attribute 'as_expr'
with both versions 1.3 and 1.4.dev

[JMSS-Unknown]

Looking back at this, the set of equations should have no solutions. Albeit, I guess it should still be able to print.
pprint gives {(x, a) | (x, a) in S.Complexes and {sin(a*x), cos(a*x)}}
so should latex give something along the lines of
\left\{\left(x, a\right) \mid \left(x, a\right) \in \mathbb{C} \wedge \left\{\sin{\left (a x \right )}, \cos{\left (a x \right )}\right\} \right\}?

[oscargus]

How would

do?

\left\{\left( x, \ a\right) \mid \left( x, \ a\right) \in \mathbb{C} \wedge \left\{\sin{\left(a x \right)}, \cos{\left(a x \right)}\right\} \right\} so I realize that it is exactly the same as you requested. In a PR soon near you.