Buenos Aires are Diaguita. In the city, 15,764 people identified themselves as Afro-Argentine in the 2010 Census. According to a 2008 CONICET survey on creeds, Christianity is the most prevalently practiced religion in Buenos Aires (79.6%), and most inhabitants are Roman Catholic (70%), though studies in recent decades found that fewer than 20% are practicing. Buenos Aires is the seat of a Roman Catholic metropolitan archbishop (the Catholic "primate" of Argentina), currently Archbishop Mario Poli. His predecessor, Cardinal Jorge Bergoglio, was elected to the Papacy as Pope Francis on 13 March 2013. There are Protestant, Orthodox Christian, Muslim, Jewish, Jehovah's Witnesses, Mormon,
Jorge Luis Borges and mathematics Jorge Luis Borges and mathematics Jorge Luis Borges and mathematics concerns several modern mathematical concepts found in certain essays and short stories of Argentinian author Jorge Luis Borges (1899-1986), including concepts such as set theory, recursion, chaos theory, and infinite sequences, although Borges' strongest links to mathematics are through Georg Cantor's theory of infinite sets, outlined in "The Doctrine of Cycles" ("La doctrina de los ciclos"). Some of Borges' most popular works such as "The Library of Babel" ("La Biblioteca de Babel"), "The Garden of Forking Paths" ("El Jardín de Senderos que se Bifurcan"), "The Aleph" ("El Aleph"), an allusion