Proof of `L = coL`

groundedproofs/Lax485149Proofs/Bridge.lean · lax-485149

What this proof establishes

no assumptions

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 closure of FO(DTC) definability under complement, by the step-counting walk; hardness is read off membership.