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formal statement (Lean)
2117theorem balanced_prime_twohundredfiftyseven : Prime 257 ∧ Prime 251 ∧ Prime 263 ∧ (251 + 263) / 2 = 257 := by native_decide
proof body
Term-mode proof.
2118
2119/-! ### Practical numbers (every m ≤ n is a sum of distinct divisors of n) -/
2120
2121/-- σ_1(1) = 1 ≥ 1, so 1 is practical. -/
depends on (10)
Lean names referenced from this declaration's body.
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of
in IndisputableMonolith.Astrophysics.NucleosynthesisTiers
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of
in IndisputableMonolith.Foundation.DAlembert.LedgerFactorization
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is
in IndisputableMonolith.Foundation.OptionAEmpiricalProgram
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of
in IndisputableMonolith.Foundation.PhiForcingDerived
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is
in IndisputableMonolith.Foundation.SimplicialLedger.EdgeLengthFromPsi
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of
in IndisputableMonolith.Foundation.SpectralEmergence
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is
in IndisputableMonolith.GameTheory.MechanismDesignFromSigma
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of
in IndisputableMonolith.Information.PhysicsComplexityStructure
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is
in IndisputableMonolith.Mathematics.RamanujanBridge.MockThetaPhantom
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Prime
in IndisputableMonolith.NumberTheory.Primes.Basic
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