1. A catma is a belief espoused by a relgion which must be understood by all members of that religion. Although it must be understood, it does not have to be accepted as truth because proof of the catma may not yet exist or be accepted, or that proof requires postulates that the adherant to the religion may not presently accept.
A'la's perfection and omnicence is a catma to Islam. (It is not a dogma becuase Islam has no central hierarchal structure to enforce any dogmas.)
That all religions are one is a catma to Baha'i.