The same rules in principle apply to the matrilineal descendants of such persons, though some rabbinical authorities may require stricter proof of Jewish descent than others. Whether such persons are required to undergo a full formal conversion depends on the community and their individual circumstances. For example, a male who has had a brit milah, who has a general understanding of Judaism, but who has been raised in a secular home might not be required to undergo ritual conversion. However, a male who has not had a brit milah, a male or female who has converted to or been brought up in another religion, or an individual raised in a completely secular home without any Jewish education, in most communities, may be required to undergo a full ritual conversion. For full participation in the community (for example, to marry with the participation of a rabbi), they may be required to display sincerity, such as a declaration of commitment to Judaism.