Annihilated

From a letter from Gottfried Leibniz to Antoine Arnauld, dated 23 March 1690:

And subsequently I saw the letter from the Reverend Father Mabillon to one of my friends, in which it was said that the Reverend Father Le Tellier's Apology for the missionaries against the practical morality of the Jesuits had given a favourable impression of these Fathers to many, but that he had heard that you had replied to it and that it was said that you had therein geometrically annihilated this Father's arguments.