∀ x0 x1 . ∀ x2 x3 x4 x5 : ι → ι → ι . pack_b_b x0 x2 x4 = pack_b_b x1 x3 x5 ⟶ and (and (x0 = x1) (∀ x6 . x6 ∈ x0 ⟶ ∀ x7 . x7 ∈ x0 ⟶ x2 x6 x7 = x3 x6 x7)) (∀ x6 . x6 ∈ x0 ⟶ ∀ x7 . x7 ∈ x0 ⟶ x4 x6 x7 = x5 x6 x7) |
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