∀ x0 . ∀ x1 : ι → ο . (∀ x2 . x1 x2 ⟶ ∀ x3 . x3 ∈ x2 ⟶ nIn x0 x3) ⟶ ∀ x2 : ι → ι . (∀ x3 . x1 x3 ⟶ x1 (x2 x3)) ⟶ (∀ x3 . x1 x3 ⟶ x2 (x2 x3) = x3) ⟶ ∀ x3 . CD_carr x0 x1 x3 ⟶ CD_minus x0 x1 x2 (CD_minus x0 x1 x2 x3) = x3 |
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