Let x0 of type ι be given.
Apply unknownprop_d27930c246df8a4f2e7b13a1f726cca678be8cf0fda06d91b4212035bc7e32cc with
x0,
λ x1 x2 . 28f8d.. x2 = 0 leaving 2 subgoals.
The subproof is completed by applying H0.
Apply unknownprop_b9b7bfb6c9b892d1b6018106403bf15df7213abab01ccecd88c7179d2ef8e566 with
0,
x0 leaving 2 subgoals.
The subproof is completed by applying real_0.
The subproof is completed by applying H0.