def Factorial.value
import bend-collections-laws-crypto@1.0.0.0/spec/math/natural.bend as Naturalimport Base
import bend-collections-laws-crypto@1.0.0.0/src/math/natural.bend as M
182def Factorial.value(+n: Nat) -> Type:
183 {M.factorial(n) == factorial(n) : Nat}