Let x0 of type ο be given.
Apply unknownprop_a818f53272de918398012791887b763f90bf043f961a4f625d98076ca0b8b392 with
x0,
x0 leaving 2 subgoals.
Assume H0: x0.
The subproof is completed by applying H0.
Assume H0: x0.
The subproof is completed by applying H0.