| ∀ x0 : ι → ((ι → ο) → ο) → (ι → ι) → ο . ∀ x1 . ∀ x2 : (ι → ο) → ο . ∀ x3 : ι → ι . (∀ x4 : (ι → ο) → ο . (∀ x5 : ι → ο . (∀ x6 . x5 x6 ⟶ x6 ∈ x1) ⟶ iff (x2 x5) (x4 x5)) ⟶ ∀ x5 : ι → ι . (∀ x6 . x6 ∈ x1 ⟶ x3 x6 = x5 x6) ⟶ x0 x1 x4 x5 = x0 x1 x2 x3) ⟶ unpack_c_u_o (pack_c_u x1 x2 x3) x0 = x0 x1 x2 x3 |
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