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formal statement (Lean)
1465theorem deficient_four : sigma 1 4 < 2 * 4 := by native_decide
proof body
Term-mode proof.
1466
1467/-- 5 is deficient: σ_1(5) = 6 < 10. -/
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
decl_use
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is
in IndisputableMonolith.Foundation.SimplicialLedger.EdgeLengthFromPsi
decl_use
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is
in IndisputableMonolith.GameTheory.MechanismDesignFromSigma
decl_use
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is
in IndisputableMonolith.Mathematics.RamanujanBridge.MockThetaPhantom
decl_use
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sigma
in IndisputableMonolith.NumberTheory.Primes.ArithmeticFunctions
decl_use