Eye of Horus fractions were written as the sum of two or more unit fractions (a fraction with 1 as the numerator), with scribes possessing tables of answers (see Rhind Mathematical Papyrus 2/n table). Thus instead of , one would write + . Different parts of the Eye of Horus were thought to be used by the ancient Egyptians to represent one divided by the first six powers of two: The Rhind Mathematical Papyrus contains tables of "Horus Eye Fractions". Studies from the 1970s to this day in Egyptian mathematics have clearly shown this theory was fallacious and Jim Ritter definitely showed it
Horus believed to have unified Upper Egypt, including Nagada, under their sway. Set was associated with Nagada, so it is possible that the divine conflict dimly reflects an enmity between the cities in the distant past. Much later, at the end of the Second Dynasty (c. 2890–2686 BCE), Pharaoh Seth-Peribsen used the Set animal to writing his serekh name in place of the falcon hieroglyph representing Horus. His successor Khasekhemwy used both Horus and Set in the writing of his serekh. This evidence has prompted conjecture that the Second Dynasty saw a clash between the followers of the Horus king and