Excursus B. The Pythagorean Symbol of the Τετρακτύς
Excursus B. The Pythagorean Symbol of the Τετρακτύς The Pythagoreans symbolized the number ten with a special term for the first four numbers, the τετρακτύς. [1] The term is probably of Doric origin, but it is unclear exactly how this unusual word, which comes from the root meaning “four,” was coined. [2] The term is first attested… Read more