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Proof of `Regular functions are closed under map lifting`

groundedproofs/Lax916827Proofs/Results.lean · lax-916827

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.

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In the paper

Description

Regular functions are closed under map lifting (Lemma C.2.10, first item): map lifting commutes with composition and the primes lift (Transducers.regularclosurepropertiesTransducers.regular_closure_properties, first conjunct), through Part A's mapLifteqmapLift_eq.

Attribution

Lemma C.2.10 of Transducers, Part C; formalised by Aristotle (Harmonic), PartC/RegMapLift.leanPartC/RegMapLift.lean, PartC/MapLift.leanPartC/MapLift*.lean.