Kant's Doctrine of the Fact of Reason?

Kant's Doctrine of the Fact of Reason asserts that there are moral principles inherently embedded in human reason, such as the existence of free will and the moral obligation to follow the categorical imperative. These principles are not based on empirical evidence but are necessary for the functioning of practical reason and the belief in moral values. Kant argues that the fact of reason serves as the foundation for moral autonomy and grounds the possibility of moral duties.