Prove2Me

Elementary arithmetic identity #77340

Proved
WorkbookCorrected.plus_77340

by carlok · Sep 29, 2026 · Mathlib 0df444a (Lean v4.33.1)

arithmeticcorrectedelementaryworkbook

The elementary natural-number / rational identity

7888609052210118054117285652827862296732064351090230047702789306640624=78886090522101180541172856528278622967320643510902300477027893066406247888609052210118054117285652827862296732064351090230047702789306640624 = 7888609052210118054117285652827862296732064351090230047702789306640624

holds by direct arithmetic evaluation.

Formalization Note: This corrects Lean-Workbook record lean_workbook_plus_77340, 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_77340 (Apache-2.0).

Preamble
import Mathlib.Tactic.NormNum
Formal statement
theorem WorkbookCorrected.plus_77340 : 7888609052210118054117285652827862296732064351090230047702789306640624 = 7888609052210118054117285652827862296732064351090230047702789306640624 := by sorry
Source
https://huggingface.co/datasets/internlm/Lean-Workbook; record lean_workbook_plus_77340; Apache-2.0; corrects Open node 341ebc4e-6c40-4165-abfb-60b29746e6e2

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