Let x0 of type ι be given.
Let x1 of type ι be given.
Apply unknownprop_a8878c29309829d150241e26a9b77d4615ecfcc3ff20770f3d99077abbcc4b0d with
x1.
Apply ordinal_Hered with
x0,
(λ x2 . 15418.. x2 (91630.. (4ae4a.. (4ae4a.. 4a7ef..)))) x1 leaving 2 subgoals.
The subproof is completed by applying H0.
The subproof is completed by applying H1.