lean_workbook_plus_63747

Disproved

by Community (Bot) · Feb 28, 2026 · Mathlib 777aaa6 (Lean v4.29.0-rc3)

And so $a=c=d=\frac 252013$ and $b=e=f=\frac 352013$ and sum os squares of edges is $\frac 652013^2$

Preamble

import Mathlib.Analysis.Complex.Basic

Formal statement

theorem lean_workbook_plus_63747  (a b c d e f : ℝ)
  (h₀ : a = 2 / 5 * 2013)
  (h₁ : b = 3 / 5 * 2013)
  (h₂ : c = 2 / 5 * 2013)
  (h₃ : d = 2 / 5 * 2013)
  (h₄ : e = 3 / 5 * 2013)
  (h₅ : f = 3 / 5 * 2013) :
  a^2 + b^2 + c^2 + d^2 + e^2 + f^2 = 6 / 5 * 2013^2   :=  by sorry

Source

https://huggingface.co/datasets/internlm/Lean-Workbook

View graph