Opposition at Vatican I

This is a rather lengthy article, but it is worth the read for anyone interested in this topic. Written in 1909 this article catalogues the Roman Catholic opposition to the definition of Papal Infallibility given at the first Vatican council held in 1870.
It lays the ground work for opposing the definition based upon traditional, conservative, catholic principals. Which is important since most Catholics of good will believe that the definition has to accepted based upon these very same principals. Yet, if one follows the Vincentian Canon of what it means to be catholic, Papal Infallibility must be discarded.
For those not familiar with this canon (or rule) it is "The famous threefold test of Catholic orthodoxy expressed by St. Vincent of Lérins (400-50) in his two memoranda (Comonitoria): "Care must especially be had that that be held which was believed everywhere [ubique], always [semper], and by all [ab omnibus]." By this triple norm of diffusion, endurance, and universality, a Christian can distinguish religious truth from error."
It is beyond dispute that the fathers (fathers of the church are the orthodox fathers from roughly 33ad to 800ad) were not concerned with "ex cathedra" statements given by the bishop of Rome, thus the very notion of papal infallibility is undermined by the Catholic definition of what it means to be catholic! For more on that, and the history of the council please read:
http://en.wikisource.org/wiki/Roman_Catholic_Opposition_to_Papal_Infallibility