Book, Paragraph

1      I, 23|   diagonal of the square is incommensurate with the side, because odd
2      I, 31|     whether the diagonal is incommensurate. For if he assumes that
3      I, 31|   is either commensurate or incommensurate, and the diagonal is a length,
4      I, 31| that the diagonal is either incommensurate or commensurate. But if
5      I, 31|    should assume that it is incommensurate, he will have assumed what
6      I, 31|    method. Let A stand for "incommensurate or commensurate", B for "
7     II, 17|   diagonal of the square is incommensurate with the side, should try