 This would suggest that numbers were postulated when notations for them first entered human culture—long before the advent of modern science and the discovery of the logistic method. (For an example of how natural numbers have become embedded in natural language, see the discussion of “descendant” in  supplement D.)  Presumably, however, according to the logistic method, such notations must ultimately be included in a formalized object language to which the criterion of ontological commitment is then applied. Further, given this commitment: