theorem proved term proof

`sigma_two_ten`

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formal statement (Lean)

1663theorem sigma_two_ten : sigma 2 10 = 130 := by native_decide

Term-mode proof.

1664
1665/-- σ_2(12) = 1 + 4 + 9 + 16 + 36 + 144 = 210. -/

Lean names referenced from this declaration's body.

sigma in IndisputableMonolith.Decision.AbileneParadox decl_use
sigma in IndisputableMonolith.NumberTheory.Primes.ArithmeticFunctions decl_use