| ∀ x0 . ∀ x1 : ι → ι → ι . (∀ x2 . x2 ∈ x0 ⟶ ∀ x3 . x3 ∈ x0 ⟶ x1 x2 x3 ∈ x0) ⟶ (∀ x2 : ο . (∀ x3 . and (x3 ∈ x0) (∀ x4 . x4 ∈ x0 ⟶ and (x1 x4 x3 = x4) (x1 x3 x4 = x4)) ⟶ x2) ⟶ x2) ⟶ (∀ x2 . x2 ∈ x0 ⟶ bij x0 x0 (x1 x2)) ⟶ (∀ x2 . x2 ∈ x0 ⟶ bij x0 x0 (λ x3 . x1 x3 x2)) ⟶ 6e587.. (pack_b x0 x1) |
|