Let x0 of type ι be given.
Apply unknownprop_4be0565ac5b41f138f7a30d0a9f34a5d126bb341d2eeaa545aa7f0c1552b9722 with
x0,
1,
λ x1 x2 . x2 = x0 leaving 3 subgoals.
The subproof is completed by applying H0.
The subproof is completed by applying unknownprop_33594f786441fb94cfa9c7be2034d88216fac0dbcbe9e223f18185e2cf6cb053.
Apply unknownprop_0d9bf92aa5eb4d4ae6bc10fbd993cadc9f48c429c82304b11a917b483aee3888 with
x0.
The subproof is completed by applying H0.