Rand.count: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/spec/math/random/rand.bend as Rand
Lines 84-90 of bend-collections-laws-crypto@1.0.0.0/spec/math/random/rand.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/math/random/rand.bend&start_line=84&end_line=90

import Base

# the number of source outputs x < N that draw k
def count(+w: Nat, +n: Nat, +k: Nat, N: Nat) -> Nat:
  match N:
    case 0n:
      0n
    case 1n+ +x:
      Nat.add(count(w, n, k, x), hit(draw(w, x, n), k))

Uses (4):
  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=bend-collections-laws-crypto@1.0.0.0/spec/math/random/rand.bend&name=draw
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/math/random/rand.bend&name=hit