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