Keywords: Tetractys.svg The Tetractys is a triangular figure consisting of ten points arranged in four rows one two three and four points in each row As a mystical symbol devised by Pythagoras it was very important to the Pythagoreans Hemenway Priya “ Divine Proportion pp 63 Sterling Publishing ISBN 1-4027-3522-7 2006-08-20 User Jossifresco Pythagorean symbols Triangular symbols |