Numeric.unsigned: def of bend-collections-laws-math@1.0.0.0
Import: import bend-collections-laws-math@1.0.0.0/spec/lib/numeric.bend as Numeric
Lines 17-24 of bend-collections-laws-math@1.0.0.0/spec/lib/numeric.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-math@1.0.0.0/spec/lib/numeric.bend&start_line=17&end_line=24

import Base

def unsigned(n: Nat, w: Word(n)) -> Nat:
  match n:
    case 0n:
      0n
    case 1n+p:
      match w:
        case WCon{b, tail}:
          Nat.add(bit_value(b), Nat.double(unsigned(p, tail)))

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.double
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Word
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Word.Con
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-math@1.0.0.0/spec/lib/numeric.bend&name=bit_value