Factum de la razón y conciencia moral Acerca de la normatividad en la moral kantiana

the purpose of this article is to argue that the kant′s factum of reason doctrine raised in his work the critique of practical reason it is insufficient to explain the normative role of the practical law and, for this reason, it is necessary to search for a direct evidence of the ？normative pressure？ practices must be sought, therefore, that moral laws have on us. this evidence can be found, according to the thesis on this article, on the phenomenology of consciousness developed by kant in the doctrine of virtue, part ii of the metaphysics of morals.