Common.nth: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/spec/lib/common.bend as Common
Lines 70-78 of bend-collections-laws-crypto@1.0.0.0/spec/lib/common.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/lib/common.bend&start_line=70&end_line=78

import Base

# Element i, if any.
def nth(-A: Data, xs: List<&2, A>, i: Nat) -> Maybe<&2, A>:
  match xs i:
    case Nil{} _:
      None{}
    case Con{h, t} 0n:
      Some{h}
    case Con{h, t} 1n+p:
      nth(A, t, p)

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat