Lax Lean Archive

While this submission is a draft, it cannot be used by other submissions.

Proof of `The backward Vitali lemma`

groundedproofs/Lax606786Proofs/FoundationStatements.lean · lax-606786

What this proof establishes

thm✓Lax606786.BackwardVitali

Assuming the claims on the left, the claim on the right holds — checked by the archive's pipeline. Proof code is not displayed here.

Read the Lean proof on GitLab

Description

Rudolph's one-third covering lemma at a fixed radius, iterated across geometric scales (Rudolph 1990), off the null set of periodic points.