Let x0 of type ι be given.
Let x1 of type ι be given.
Apply binintersect_Subq_max with
x1,
x0,
binintersect x0 x1 leaving 2 subgoals.
The subproof is completed by applying binintersect_Subq_2 with x0, x1.
The subproof is completed by applying binintersect_Subq_1 with x0, x1.