Problem

erdos:1175

True ↔ ∀ (κ : Cardinal.{u_1}), Cardinal.aleph0 < κ → ∃ μ, ∀ (V : Type u_1) (G : SimpleGraph V), G.chromaticCardinal = μ → ∃ H, H.coe.CliqueFree 3 ∧ H.coe.chromaticCardinal = κ

Open Current State

Declared status: open
Formalization: formalized
Subjects: set theorychromatic number
OEIS: N/A
Sources: source:erdos-problemssource:formal-conjectures
Statement: www.erdosproblems.com

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