def nth0
import bend-collections-laws-crypto@1.0.0.0/proofs/math/natural/lists.bend as Listsimport Base
import bend-collections-laws-crypto@1.0.0.0/spec/math/natural.bend as S
42def nth0(+xs: List<&2, Nat>, +i: Nat, +d: Nat) -> Nat:
43 S.nth0(xs, i, d)