Proof of `Reversible Mealy machines are closed under composition`
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
Reversible Mealy machines are closed under composition (Lemma A.2.6): the product machine is reversible in each coordinate.
Attribution
Lemma A.2.6 of Transducers; Lean proof by Aristotle ().