The question is : what belongs to the Faith ? what in Tradition is infallible ? Commonitory
Cardinal Burke: If a Pope would formally profess heresy he would cease, by that act, to be the Pope. It’s automatic. And so, that could happen.
The entire text
Bishops of Novus ordo Valid? Study of the International Committee for Scientific Research about the Genesis and the Validity of Pontificalis Romani
list of heresies Second list
TWENTIETH OECUMENICAL (DOGMATIC) COUNCIL, VATICAN I (1869-1870)
History : it happened already ?
Dominic Prummer O.P. :
Doctrina Communis A public heretic cannot retain the papacy List of most known authorities
2015 10 09