Lax Lean Archive

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Environment v4.30.0. The archive's epoch is v4.33.0; only submissions in v4.30.0 can cite this work.

Proof of `The Immerman–Vardi theorem` (1st statement)

groundedproofs/Lax979537Proofs/ImmermanVardi.lean · lax-979537

What this proof establishes

no assumptions

thm✓Lax979537.ImmermanVardi (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 concrete evaluator proves the computational direction. The initialized positive-rule simulation and accepting-output formula prove the converse.