Abstract:
Logicians and philosophers have thoroughly examined various aspects of the content of the principle of non-contradiction and have left a great legacy on the basis of which researchers can well reach the most fundamental foundation of human knowledge. However, some have seemingly tried to contradict this principle, but Avicenna after presenting various ways to confront them proposes a practical solution that seems to be useful. One of the challenging issues regarding the scope of the rule is that some believe that the entity at its essence is not covered by the principle. In this article, we have found evidence against this common view, and of course, after analyzing the content of the verses and narrations, we came across cases that are consistent with the content of the principle.