law len_scale
import bend-collections-laws-crypto@1.0.0.0/proofs/crypto/poly1305/value.bend as Valueimport Base
import bend-collections-laws-crypto@1.0.0.0/src/crypto/poly1305/limbs.bend as Li
513law len_scale:
514 for +c: U32
515 for +a: List<&2, U32>
516 {len(Li.scale(c, a)) == len(a) : Nat}