def pow_mod_zero
import bend-collections-laws-crypto@1.0.0.0/proofs/math/natural/modpow.bend as Modpowimport Base
import bend-collections-laws-crypto@1.0.0.0/src/math/natural.bend as M
101def pow_mod_zero(+b: Nat, +e: Nat) -> {M.pow_mod(b, e, 0n) == Fail{M.ZeroDivision{}} : Result<&2, &2, M.MathError, Nat>}:
102 {==}