A. Notion
The term infallibility very often is understood to imply also sinlessness, a mistake which had to be denounced by Bishop Gasser as the official relator at Vatican I (see Mansi, LII, 1219). “Inerrancy” might be better, but this is usually reserved for the same quality in Scripture. The positive content of the term infallibility is simply “truth” or “truthfulness”. In the following ex…