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erdos_273

Specification

Is there a covering system all of whose moduli are of the form $p-1$ for some primes $p \geq 5$?

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Lean 4 Statement 
theorem erdos_273 : answer(sorry) ↔ ∃ c : StrictCoveringSystem ℤ, ∀ i, ∃ (p : ℕ), p.Prime ∧ 5 ≤ p ∧
    c.moduli i = Ideal.span {↑(p - 1)}
ID: ErdosProblems__273__erdos_273
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