Lax Lean Archive

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

Proof of `FO(≤) ⊊ AC⁰: EVEN with arithmetic` (1st statement)

groundedproofs/Lax945089Proofs/Bridge.lean · lax-945089

What this proof establishes

thm✓Lax945089.FirstOrderBelowACZero (1st statement)

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 GitHub

Description

The library's sentence on the rank of the greatest element, transported to the concept's problem.