| ∀ x0 . ∀ x1 : ι → ι → ο . unpack_r_o (pack_r x0 x1) (λ x3 . λ x4 : ι → ι → ο . and (∀ x5 . x5 ∈ x3 ⟶ ∀ x6 . x6 ∈ x3 ⟶ x4 x5 x6 ⟶ x4 x6 x5) (∀ x5 . x5 ∈ x3 ⟶ ∀ x6 . x6 ∈ x3 ⟶ ∀ x7 . x7 ∈ x3 ⟶ x4 x5 x6 ⟶ x4 x6 x7 ⟶ x4 x5 x7)) = and (∀ x3 . x3 ∈ x0 ⟶ ∀ x4 . x4 ∈ x0 ⟶ x1 x3 x4 ⟶ x1 x4 x3) (∀ x3 . x3 ∈ x0 ⟶ ∀ x4 . x4 ∈ x0 ⟶ ∀ x5 . x5 ∈ x0 ⟶ x1 x3 x4 ⟶ x1 x4 x5 ⟶ x1 x3 x5) |
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