A Consideration of the Extension of the Reasons for Infallibility from One Person to Another

A problem in studies of infallibility is whether the reasons for infallibility of one person might be extended to another person without a warrant, or there should be a warrant for such extension. For example, can one extend the reasons for the full-fledged infallibility of Prophet Muhammad and Shiite Imams to past prophets and prove their full-fledged infallibility as well, while there is not warrant for this, and the relevant reasons only established the full-fledged infallibility of Prophet Muhammad and Shiite Imams? A consideration of issues concerning infallibility shows that certain reasons for infallibility are sometimes deployed outside of their proper scope and extended to other people with a cogent reason. Such a mistake sometimes occurs in deploying the reasons for the infallibility of one person to prove the infallibility of another person and sometimes for rejecting the infallibility of a person, instead of rejecting that of another person. This research aims to find gaps in studies of infallibility, showing certain errors that occur therein. We consider the problem with a descriptive and analytic method.