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