Lax Lean Archive

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Proof of `PSPACE is closed under first-order reductions` (1st statement)

groundedproofs/Lax134656Proofs/Bridge.lean · lax-134656

What this proof establishes

no assumptions

thm✓Lax134656.PSPACEClosure (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

SO(TC) definability reads a problem on finite structures only.