Recitation of the rule of grace in the necessity of appointing an imam by Almighty God

The rule of grace is used in the science of theology to prove the necessity of Imamate, based on which, the appointment of an imam by God to guide humanity will be an example of grace And since God's favor is necessary and obligatory, installing and appointing an imam will be obligatory on God. The correctness of the argument based on this rule is conditional on the fact that the installation and appointment of the Imam by God is an irreplaceable and exclusive favor, so that its necessity is proven to God Almighty. But the interpretations available in the popular books of Theology do not have the necessary power to prove this matter as the minimum of the rule of grace. In this article, two new interpretations of Lotf rule are presented in order to eliminate the problems raised in the minor aspects of this rule. In the first interpretation, the frequent traditions of the infallibles regarding the uniqueness and irreplaceability of the position of the infallible imam are added to this rule. which is placed after the proof of the Imamate of the innocents, not among the proofs of proving the Imamate The second interpretation presents the human knowledge of his great talents and the necessity of the existence of a divine imam to teach how to live in an infinite life, a proof of the irreplaceability of the position of imam and the necessity of this grace. The second interpretation, in addition to being placed next to the proofs of the Imamate, preserves the rationality of this argument and the non-integration of the narrative proof.