Natural.Comb.zero: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/spec/math/natural.bend as Natural
Lines 201-203 of bend-collections-laws-crypto@1.0.0.0/spec/math/natural.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/math/natural.bend&start_line=201&end_line=203

import Base
import bend-collections-laws-crypto@1.0.0.0/src/math/natural.bend as M

# PDF 8.6: comb(n, k) is 0 for k > n, not an error
def Comb.zero(+n: Nat, +k: Nat, +h: {Nat.is_lt(n, k) == True{} : Bool}) -> Type:
  {M.comb(n, k) == 0n : Nat}

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.is_lt
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/math/natural.bend&name=comb