Let x0 of type ι be given.
Let x1 of type ι be given.
Assume H0:
not (x0 = x1).
Assume H1: x1 = x0.
Apply unknownprop_33065514059ce7801a01fc58e0021065ae67f2a101e98b94e5f31c7706fb9ef8 with
x0,
x1 leaving 2 subgoals.
The subproof is completed by applying H0.
Let x2 of type ι → ι → ο be given.
The subproof is completed by applying H1 with λ x3 x4 . x2 x4 x3.