Of course Vatican II taught things. It taught a whole bunch of things! It required no exercise of the extraordinary Magisterium, but the entire Council is part of the infallible ordinary Magisterium of the Church.
What is given to the Church at an Ecumenical Council is infallible, authoritative, and binding on the conscience of every Catholic, whether doctrinal development occurs or not. There is no such thing as a Council which is "advisory" that one is not bound to obey. Read the Papal Brief that I posted, given by Pope Paul VI, to conclude the Council. Here are some pertinent parts:
"At last all which regards the holy Ecumenical Council has, with the help of God, been accomplished and all the consititutions, decrees, declarations, and votes have been approved by the deliberation of the Synod and promulgated by us."
"We decide moreover that all that has been established synodally is to be religiously observed by all the faithful..."
"We have approved and established these things, decreeing that the present letters are and remain stable and valid, and are to have legal effectiveness, so that they may be disseminated and obtain full and complete effect, and so that they may be fully convalidated by those whom they concern or may concern now and in the future; and so that, as it be judged and described, all efforts contrary to these things by whoever or whatever authority, knowingly or in ignorance, be invalid and worthless from now on."
Anyway, Bud McDuell has already answered that a Council can teach error. Do you believe that a Council can teach error?
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