Natural.Ilog.zero: def of bend-collections-laws-math@1.0.0.0
Import: import bend-collections-laws-math@1.0.0.0/spec/math/natural.bend as Natural
Lines 237-239 of bend-collections-laws-math@1.0.0.0/spec/math/natural.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-math@1.0.0.0/spec/math/natural.bend&start_line=237&end_line=239

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

# PDF 2.3 / 4.5: log(0) is a domain error, as is a base below 2
def Ilog.zero(+b: Nat) -> Type:
  {M.ilog(0n, b) == Fail{M.Domain{}} : Result<&2, &2, M.MathError, Nat>}

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=Result
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-math@1.0.0.0/src/math/natural.bend&name=MathError
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-math@1.0.0.0/src/math/natural.bend&name=ilog