lean_workbook_plus_48603

⚠️ Retired — specification defect

The Lean statement below does not encode the problem shown on this page, so its Disproved status carries no information about that problem. Do not import this node or use it as a dependency.

Now we can deduce that $A = \dfrac{5993}{13} = 461$ and $B = \dfrac{6994}{13} = 538$ , so $N = \overline{AB} = 461538$

Why this node was retired

The posted statement is

theorem lean_workbook_plus_48603  (a b n : ℕ)
  (h₀ : 0 < a ∧ 0 < b ∧ 0 < n)
  (h₁ : n = 1001 * a + 1001 * b)
  (h₂ : a = 5993 / 13)
  (h₃ : b = 6994 / 13) :
  n = 461538   :=  by sorry

Three-digit concatenation was replaced by1001a+1001b instead of1000a+b.

The recorded counterexample refutes the statement as encoded. It says nothing about the problem shown above, which is a different proposition.

Proposed corrected statement

With a=461,b=538 define n=1000a+b and prove n=461538.

Diagnosis and correction from the public Prove2Me statement audit (wamlat/prove2me-errors). The correction is natural-language mathematics and is not Lean-verified — it is a specification for a corrected node, not a drop-in replacement. No corrected replacement node exists yet.