∀ x0 x1 . x1 ⊆ prim4 (ordsucc x0) ⟶ (∀ x2 . x2 ∈ x1 ⟶ ∀ x3 . x3 ∈ x1 ⟶ (x2 = x3 ⟶ ∀ x4 : ο . x4) ⟶ ∀ x4 : ο . (∀ x5 . and (x5 ∈ ordsucc x0) (x5 ∈ x2 = x5 ∈ x3) ⟶ x4) ⟶ x4) ⟶ atleastp x1 (prim4 x0) |
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