Sure. The Catechism contains the Catholic beliefs. The fact that certain individual bishops' beliefs are not in there are admonishment enough.
But if you want examples, let us look to Marcion, to Arius, to Tertullian, to Lucifer Calaritanus, to Macedonius I, to Eutechys, to Mani, to Constantine the Armenian, to Priscillian, to Valentinus, to Audius, to Donatus Magnus, to Montanus, to Pelagius, to Henry of Lausanne, to Otto Jansen, to Marie Paule Giguère, to Leonard Feeney, and a whole raft of other bishops and theologians. Expressly and in detail, condemned as heretical by the Church.
Unfortunately, this isn’t the first time I’ve seen you resort to pathetically weak arguments followed up with an Ad-hom.
Nice to see your rerun tag.
“But if you want examples,”
It’s pretty disturbing for you to compare Augustine, Theodoret and Pope Gelasius to well known heretics. You also still failed to demonstrate how just those three examples were actually in rebellion to the teachings of the Magisterium they were heading, even though I asked you to. I’m guessing you can’t.
Heretics were in most cases very holy and learned men whose pursuit of the Truth lead them into error. We judge them differently than their contemporaries because we have a more complete theological language than was available to them. Their two biggest errors were an insistence that mysteries must be reconciled with human rationality and reason, and a rejection of authority (not unlike their modern FReeper counterparts).
Peace be with you