Pierre Boutroux Professions : Mathematician Born : December 6, 1880 Died : August 15, 1922 Browse All Authors Famous Quotes by Pierre Boutroux Logic is invincible, because in order to combat logic it is necessary to use logic. Pierre Boutroux math order knowledge Similar Authors Abram Samoilovitch Besicovitch mathematician Brahmagupta mathematician Augustus De Morgan mathematician Augustin-Louis Cauchy mathematician Atle Selberg mathematician Arthur Cayley mathematician All Authors