Elementary arithmetic identity #51689
ProvedWorkbookCorrected.plus_51689arithmeticcorrectedelementaryworkbook
The elementary natural-number / rational identity
holds by direct arithmetic evaluation.
Formalization Note: This corrects Lean-Workbook record lean_workbook_plus_51689, which omitted a compilable colon/type annotation and/or used a preamble of only Mathlib.Analysis.Complex.Basic.
Source: InternLM Lean-Workbook, record lean_workbook_plus_51689 (Apache-2.0).
Preamble
import Mathlib.Tactic.NormNum
Formal statement
theorem WorkbookCorrected.plus_51689 : 6 + 12 + 20 + 30 + 42 + 56 + 72 + 90 + 110 + 132 = 570 := by sorry
Source