Let x0 of type ι be given.
Let x1 of type ι be given.
Let x2 of type ι be given.
Apply unknownprop_3ecd982cbc53bc522aff3fa68eac8a88bfce787ef3776f0dfe2618ef278e2daf with
x0,
mul_CSNo x1 x2 leaving 2 subgoals.
The subproof is completed by applying H0.
Apply unknownprop_3ecd982cbc53bc522aff3fa68eac8a88bfce787ef3776f0dfe2618ef278e2daf with
x1,
x2 leaving 2 subgoals.
The subproof is completed by applying H1.
The subproof is completed by applying H2.