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formal statement (Lean)
2152theorem practical_twentyeight : sigma 1 28 ≥ 28 := by native_decide
proof body
Term-mode proof.
2153
2154/-- σ_1(30) = 72 ≥ 30, so 30 is practical. -/
depends on (6)
Lean names referenced from this declaration's body.
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sigma
in IndisputableMonolith.Decision.AbileneParadox
decl_use
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is
in IndisputableMonolith.Foundation.OptionAEmpiricalProgram
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is
in IndisputableMonolith.Foundation.SimplicialLedger.EdgeLengthFromPsi
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is
in IndisputableMonolith.GameTheory.MechanismDesignFromSigma
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is
in IndisputableMonolith.Mathematics.RamanujanBridge.MockThetaPhantom
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sigma
in IndisputableMonolith.NumberTheory.Primes.ArithmeticFunctions
decl_use