| ∀ x0 . ∀ x1 x2 x3 x4 : ι → ι . ∀ x5 x6 x7 x8 : ι → ο . (∀ x9 . x9 ∈ x0 ⟶ x1 x9 = x2 x9) ⟶ (∀ x9 . x9 ∈ x0 ⟶ x3 x9 = x4 x9) ⟶ (∀ x9 . x9 ∈ x0 ⟶ iff (x5 x9) (x6 x9)) ⟶ (∀ x9 . x9 ∈ x0 ⟶ iff (x7 x9) (x8 x9)) ⟶ pack_u_u_p_p x0 x1 x3 x5 x7 = pack_u_u_p_p x0 x2 x4 x6 x8 |
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