Proof of `The Immerman–Vardi theorem` (2nd statement)
groundedproofs/Lax979537Proofs/ImmermanVardi.lean · lax-979537
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.
Description
The concrete initialized rule LFP simulates the polynomial-time machine; an accepting-output formula and finitely many small-domain cases define Q.