The same was not true in medieval times—whether in the West or the Arab-speaking world—due in part to the importance given to them by the Neopythagorean (and hence mystical) Nicomachus (ca.
Non ocorría o mesmo nos tempos medievais, tanto en Europa coma no mundo árabe, debido en parte á importancia que lles daba o neopitagórico, e xa que logo místico, Nicómaco (ca.