Apply unknownprop_f8517820c41e80abae5090668a4d7f9c31465f066f11281cc9990a74d008bfa1 with
λ x0 : ι → ι . λ x1 . x0 (x0 (x0 (x0 (x0 (x0 (x0 (x0 (x0 x1)))))))).
The subproof is completed by applying unknownprop_10e8d2b4c5c6b60f0e753f919b265e0d0bc29433d8f6ebf84d7f5f1a61d607ca.