Draft — mutable and not usable as a dependency; its citation marks the draft state.

Proof of `Single-tape characterization of P`

groundedproofs/Lax554803Proofs/ModelEquivalence.lean · lax-554803

What this proof establishes

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

After restricting stack alphabets, compile stacks to tape tracks with polynomial overhead. Conversely, simulate a tape by two stacks with linear overhead. Both bounds include input conversion and final output conversion.