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Problem

erdos:134

True ↔ ∀ (ε δ : ℝ), 0 < ε → 0 < δ → ∃ N, ∀ n ≥ N, ∀ (G : SimpleGraph (Fin n)), G.CliqueFree 3 → (∀ (v : Fin n), ↑(G.degree v) < (↑n).rpow (1 / 2 - ε)) → ∃ H, G ≤ H ∧ H.CliqueFree 3 ∧ (∀ (x y : Fin n), x ≠ y → H.Adj x y ∨ ∃ z, H.Adj x z ∧ H.Adj z y) ∧ ↑(H.edgeFinset \ G.edgeFinset).card ≤ δ * ↑n ^ 2

Declared status
proved (Lean)
Formalization
formalized
Subjects
graph theory
OEIS
N/A

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