Let x0 of type ι be given.
Let x1 of type ι be given.
Apply unknownprop_72649fc0d609625e17ac53e25cd57a51abe86f395cd11e949eac34127a9e2ea9 with
x0,
λ x2 x3 . x2 = x1 leaving 2 subgoals.
The subproof is completed by applying H0.
Apply H2 with
λ x2 x3 : ι → ι → ι → ι → ι → ι → ι . Church6_to_u6 x3 = x1.
Apply unknownprop_72649fc0d609625e17ac53e25cd57a51abe86f395cd11e949eac34127a9e2ea9 with
x1.
The subproof is completed by applying H1.