Let x0 of type ι be given.
Apply unknownprop_9155775841857cb348ae79731186aa077c95466dd39af675bcbf421e2bc4c9da with
x0,
02b90.. (94f9e.. (5246e.. x0) (λ x1 . f4dc0.. x1)) (94f9e.. (23e07.. x0) (λ x1 . f4dc0.. x1)) leaving 2 subgoals.
The subproof is completed by applying H0.