Ad Gentes is the Second Vatican Council's Decree on the Missionary Activity of the Church. Passed by the bishops assembled by a vote of 2,394 to 5, it was promulgated by Pope Paul VI on November 18, 1965. The title means "to the nations in Latin, and is from the first line of the decree, as is customary with Roman Catholic documents.
... discriminates between three qualitatively different cases:
If the discriminant is zero, then there is a repeated solution x, and this solution is real. (Geometrically, ...