Let x0 of type ι be given.
Let x1 of type ι → ι → ι be given.
Let x2 of type ι → ι be given.
Let x3 of type ι → ο be given.
Let x4 of type ι → ο be given.
Apply unknownprop_8ced34a55b9396a24f6b59a4a1c5ef6ce5856555b704a8a62c5adfc7dc1b2e75 with
3da2d.. x0 x1 x2 x3 x4,
x0,
x1,
x2,
x3,
x4.
Let x5 of type ι → ι → ο be given.
The subproof is completed by applying H0.