Abstract
The title of A. P. Martinich's article is a misnomer. What he is defending is not the doctrine of infallibility as defined by the First Vatican Council and as understood by Roman Catholic theologians, but his own highly personal and, to my mind, entirely mistaken interpretation of the doctrine. This interpretation derives from the fact that some purportedly infallible utterances contain the expression ‘we declare that…’. This leads Martinich to believe that such utterances are declarations rather than statements and since declarations, as he appears to understand the term, create facts rather than express them, he concludes that it is logically impossible for an ‘infallible utterance’ to be false. The papal claim to infallibility is thus no longer open to question since ‘the fact-making quality of infallible utterances guarantees their correctness’