Let x0 of type ι be given.
Let x1 of type ι → ο be given.
Assume H1:
∀ x2 x3 x4 x5 x6 x7 x8 x9 . SNo x2 ⟶ SNo x3 ⟶ SNo x4 ⟶ SNo x5 ⟶ SNo x6 ⟶ SNo x7 ⟶ SNo x8 ⟶ SNo x9 ⟶ x0 = bbc71.. x2 x3 x4 x5 x6 x7 x8 x9 ⟶ x1 (bbc71.. x2 x3 x4 x5 x6 x7 x8 x9).
Apply H0 with
x1 x0.
Let x2 of type ι be given.
Apply H2 with
x1 x0.
Apply H4 with
x1 x0.
Let x3 of type ι be given.
Apply H5 with
x1 x0.
Apply H7 with
x1 x0.
Let x4 of type ι be given.