Many liberal Catholics argue that, unless it has the “infallible stamp,” a papal teaching can be rejected. Notwithstanding, historical (and dogmatic) Catholic teaching argues that one must accept papal teachings, at least those that fall under, not just the extraordinary but ordinary universal magisterium (e.g., the prohibition on female ordination to the sacerdotal priesthood). Indeed, there have been many denouncements of such an attitude, including the following from the 1864 Syllabus of Errors wherein Pius IX condemned the following proposition:
22. The obligation which binds Catholic teachers and authors applies only to those things which are proposed for universal belief as dogmas of the faith, by the infallible judgment of the Church.
