Introduction to Arithmetic

Adrastus Archytas Arith beginning Boethius called CHAPTER cited commentary cubes definition difference dimensions Diophantus division dyad elements equal Eratosthenes Euclid even-times odd example extremes factors fractions geometrical greater terms Greek harmonic heteromecic numbers Hiller Hoche Iamblichus ibid Introduction to Arithmetic manuscripts mathematical matter mean term measure metic monad multiple natural series Nicomachean Nicomachus Nicomachus's odd numbers original passage pentagonal perfect numbers Philolaus Photius Plato proportion propositions pyramid Pythagoras Pythagorean reference relation sesquialter sesquiquartan sesquitertian side solid numbers square subcontrary superparticular superpartient supra lin T. L. Heath Theologumena Arithmeticae Theon of Smyrna theorem things third Timaeus tion triangle triangular number triple unity ἂν γὰρ δὲ διὰ εἰς ἐν ΙΙ καὶ κατὰ μὲν μὴ ὅτι περὶ τὰ ταῦτα τε καὶ τὴν τῆς τὸ τὸν τοῦ τῷ τῶν ὡς