Catholic Church in Africa in Africa "has grown by 20 times since 1980." In the papal conclave of 2013, Cardinal Peter Turkson of Ghana was called "the most likely" candidate from Africa and was considered the favorite to win the papacy before the election of Jorge Mario Bergoglio in 2013. Furthermore, Cardinal Robert Sarah has mentioned in the press as a possible candidate for the papacy, both in 2013 and in future conclaves. Persecution of Christians by Islamists, such as Boko Haram in Nigeria, remains one of the hardest issues to solve for the Catholic Church in Africa. Although Catholic priestly vow of celibacy
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