and propositions contained in the first 13 books, but without the clarity and rigor of the preceding volumes. Obviously a work in progress, these pages document Euclid’s efforts to settle ...

Of the thirty-six propositions of the book, six are auxiliary ... the Arabic text 1 translated by Woepcke (Journ. As., 1851) seems to represent Euclid's text, and although the same cannot be ...