Lax Lean Archive

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

Proof of `Strong and plain hardness` (4th statement)

groundedproofs/Lax434175Proofs/StrongHardness.lean · lax-434175

What this proof establishes

thm✓Lax434175.StrongHardness (4th 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

Every problem of W[t] reduces to the subproblem with small numbers, which the identity reduces to the problem.