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saint_rafael
Guest
An infallible declaration does not have to have those exact words.In answer to one of the questions as to what makes a declaration a dogmatic declaration, the wording has to include ther phrase “faith of the Church” It has to say that this is the faith of the Church. If you look at he infallible decrees the reference is always made to the faith of the Church.
This decree carries the weight of law. Which must be obeyed, except of succeeding popes. Popes are above the law. They are not above dogma, but they are above Church law. In essence, they are the law.
Again here are the exact words that make Quo Primas infallible for all time:
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“by our Apostolic authority . . . we order and declare . . . that this present Constitution can never be revoked or modified, but shall forever remain valid and have the force of law.”**
Pope Pius V used the words “by our apostolic authority” and that Quo Primas was forever valid and law, which means it could never be abrogated.

Cardinal Hoyos when negotiating with the SSPX, acknowledged this truth in 2001, years before the Motu Proprio. Cardinal Hoyos said they couldn’t make it public then because they feared the bishops:
catholictradition.org/Eucharist/quo-primum.htm