ErdosProblems · test · AMS 5

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Erdős Problem 80

Exercise 80 · Erdős

On a graph with no edges there is no book.

Formal statement · Lean 4.lean
theorem bookNumber_bot {n : ℕ} : bookNumber (⊥ : SimpleGraph (Fin n)) = 0 := by
  sorry

Proof. sorry

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Reference ↗ · Lean source ↗