The full expression of the idea and its development into a philosophy of mathematics is due to Russell, loc. cit.
(1897); and Russell, loc. cit., ch.
Russell, loc. cit., ch.
See loc. cit.
He is further credited by the scholiast on Aristophanes (loc. cit.) with having composed comedies, dithyrambs, epigrams, paeans, hymns, scolia, encomia and elegies; and he is the reputed author of a philosophical treatise on the mystic number three.