def PowMod.zero_modulus

bend-collections-laws-math@1.0.0.0 · spec/math/natural.bend:255

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

255# PDF 8.7: pow(b, e, 0) raises ValueError; here ZeroDivision
256def PowMod.zero_modulus(+b: Nat, +e: Nat) -> Type:
257  {M.pow_mod(b, e, 0n) == Fail{M.ZeroDivision{}} : Result<&2, &2, M.MathError, Nat>}