the two electric lines of forces can never intersect each other.why?

As we know electric field lines are straight as well as curved,  and each electric field line indicates the specific direction, so if two or  more electric field lines intersect, then at the point of intersection, one electric field line will show two or more direction, which is  not possible as electric field is uniquely defined at each point in space. That is why two electric field lines  of force do not intersect  each other.