Lemma: MrTheorem18_Collatz_1c53d8a4.lift_convergence
If the Collatz orbit of n reaches 1, then the orbit of 2^r*n reaches 1 for every natural r. This propagates an established convergence result; it does not assume or prove universal convergence.
Exact formal statement
∀ (n r : Nat),
(Exists.{1} fun k => Eq.{1} (Nat.iterate.{1} Corpus.WikipediaCollatzConjecture.collatzStep k n) 1) →
Exists.{1} fun k =>
Eq.{1}
(Nat.iterate.{1} Corpus.WikipediaCollatzConjecture.collatzStep k
(HMul.hMul.{0, 0, 0} (HPow.hPow.{0, 0, 0} 2 r) n))
1This is a published formal lemma. Its scope is the exact statement above.
Environment availability: available.