Undoubtedly, rational explanation and rational defense of religious teachings have a prominent role in the growth and development of religion. An important part of the Imami theological discussions has been explained by him in such a way that the teachings transmitted by him are the basis of the theological views of the Shiite religion in the general issues of belief.
The main question of the article is how Imam Sadegh (AS) used logical axioms in theological arguments? This descriptive-analytical study has studied the method of using logical axioms in the theological hadiths of Imam Sadegh (AS) in an exemplary manner.
Imam Sadegh (AS) by mastering the divine knowledge on the one hand and considering the level of understanding of the audience on the other hand, with appropriate formulation, has fully used the axioms of logic in his theological arguments. A variety of audiences have used all six types of logic certainties in reasoning. Consequences and conjectures have been used more in non-monotheistic discussions and observations in the argument of order. Also, the use of experiences has been more understandable to most people.