∀ x0 x1 . subgroup x0 x1 ⟶ ∀ x2 : ι → ι → ο . (∀ x3 x4 . ∀ x5 : ι → ι → ι . (∀ x6 . x6 ∈ x4 ⟶ ∀ x7 . x7 ∈ x4 ⟶ x5 x6 x7 ∈ x4) ⟶ Group (pack_b x3 x5) ⟶ x3 ⊆ x4 ⟶ x2 (pack_b x3 x5) (pack_b x4 x5)) ⟶ x2 x0 x1 |
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