You seem to be saying that Cyprian could dipute with Pope Stephen because the matter was not defined dogmatically by an ex cathedra definition, or a solemn definition of an ecumenical council.
It was neither defined dogmatically (
de fide definita), nor taught universally as an article of faith (
de fide catholica) nor taught doctrinally (
sententia certa). Thus, in St. Cyprian’s view it was a matter of freedom. It was a matter of freedom, that is, until St. Stephen gave him his disciplinary instruction to conform to the liturgical norms of the Church of Rome. This became at that point a matter of obedience to one’s lawful superior. Refusal of “religious submission” is a sin against charity, rather than a refusal of “assent of faith,” which is a sin against faith.
This was not (at the time)
de fide catholica, that is, an
article of faith (
de fide) according to the ordinary and
universal magisterium of their day. Many bishops disputed this teaching throughout Africa and Asia Minor (Cappadocia). Over time, this certainly could be more clearly considered
de fide catholica, as these Churches soon afterwards corrected their error, as Augustine tells us.
One would be hard pressed to make a case using principles common to Catholic dogmatic theology that at the time of Cyprian and Stephen, the magisterium taught that the validity of baptism by heretics was an article of faith, taught universally by the college of bishop that were in communion with the Pope. All of the bishops who opposed Pope Stephen’s instruction on the matter remained in communion with him.
Stephen’s writings on the matter no where hint that he was making a decision regarding an article of faith. Instead, his instruction was pertaining to a unity of liturgical practice. This was similar to earlier Pope Victor’s direction regarding the controversy of when to celebrate Easter.
Pope Stephen wrote:
“If therefore any come to you from any heresy whatsever, let nothing be renewed except what has been transmitted, so that the hand is placed upon them for repentance”
[Fragment of a letter to Cyprian from Stephen, cited by Cyprian’s letter to Pompey, DS 46]
In this case, you are limiting magisterial infallibility to the Extraordinary Magisterium.
No. But I am saying that the magisterium at the time of St. Stephen and St. Cyprian, whether ordinary or solemn, did not teach this this as an article of faith (de fide).
However, the Church currently teaches that the Ordinary Magisterium is infallible too.
Only when intending to propose
an article of faith, and only thourgh an exercise of the
ordinary and
universal magisterium.
If something is held by the Pope and majorrity of bishops it is held to be an infallible teaching.
If by “held” you mean
de fide tenenda, yes. However, the case for St. Stephen, St. Cyprian, and the majority of bishops considering this matter as
de fide tenenda at the time of St. Stephen and St. Cyprian is untenable, given the extant evidence.
Cyprian didn’t just blindly accept what the Ordinary Magisterium was teaching
No Catholic should blindly accept anything. We are called by Scripture to “
test everything, hold fast to the good.” Yet we are also commanded to “
obey your superiors and submit to them” (Heb 13:17). St. Thomas Aquinas taught that the only time we are permitted to disobey our lawful superior is when it is contrary to the demand of a higher authority, or when the superior demands something outside the scope of his responsibility.
The pope has always had plenary authority as the vicar of Christ to govern the church universal in matters religious, to include regulation of the sacraments. Cyprian was wrong. Augustine quoting from Cyprian to the Donatists, make this clear. The subsequent response of all the Churches which changed their canons after the martyrdom of Cyprian and Stephen, thereby conforming to the canons of Rome also make this clear.