| ∀ x0 . ∀ x1 : ι → ι → ο . ∀ x2 x3 x4 x5 x6 x7 . (∀ x8 . x8 ∈ x4 ⟶ ∀ x9 : ο . (x8 ∈ x0 ⟶ x8 ∈ DirGraphOutNeighbors x0 x1 x3 ⟶ (x3 = x8 ⟶ ∀ x10 : ο . x10) ⟶ x1 x3 x8 ⟶ (x8 = x2 ⟶ ∀ x10 : ο . x10) ⟶ x9) ⟶ x9) ⟶ (∀ x8 : ο . (∀ x9 . and (x9 ∈ x4) (x1 x5 x9) ⟶ x8) ⟶ x8) ⟶ (x1 x5 x6 ⟶ x1 x7 x6 ⟶ ∀ x8 . x8 ∈ x4 ⟶ not (x1 x5 x8)) ⟶ x1 x5 x6 ⟶ x1 x7 x6 ⟶ False |
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