| ∀ x0 . Permutation x0 ⟶ ∀ x1 : ι → ο . (∀ x2 . ∀ x3 : ι → ι . (∀ x4 . x4 ∈ x2 ⟶ x3 x4 ∈ x2) ⟶ (∀ x4 . x4 ∈ x2 ⟶ ∀ x5 . x5 ∈ x2 ⟶ x3 x4 = x3 x5 ⟶ x4 = x5) ⟶ (∀ x4 . x4 ∈ x2 ⟶ ∀ x5 : ο . (∀ x6 . and (x6 ∈ x2) (x3 x6 = x4) ⟶ x5) ⟶ x5) ⟶ x1 (pack_u x2 x3)) ⟶ x1 x0 |
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