Part, §

 1    Text,  XXVII | generatur rectanguli incrementum aB + bA. Q.E.D. In this very
 2    Text,  XXVII |     incrementa tota, that is, of AB. Let any Reader judge whether
 3    Text,  XXVII |        mutatio geniti rectanguli AB will be aB + bA. Either
 4    Text,  XXVII |     geniti rectanguli AB will be aB + bA. Either therefore the
 5    Text,  XXVII |       the Rectanguli incrementum aB + bA belongs to the rectangle
 6    Text,  XXVII |         belongs to the rectangle AB. ~
 7    Text,  XXVIII|       increment and decrement of AB, and ask which of these
 8    Text,  XXIX  |          whether the velocity of AB increasing or of AB decreasing
 9    Text,  XXIX  |  velocity of AB increasing or of AB decreasing is to be esteemed
10    Text,  XXIX  |          is greater or less than AB, but at that very instant
11    Text,  XXIX  |       instant of time that it is AB.'' For my part, in the rectangle
12    Text,  XXIX  |        my part, in the rectangle AB considered simply in it
13    Text,  XXX   |       say, ``you do not consider AB as lying at either extremity
14    Text,  XXXII |        are real quantities, then ab is something, and consequently
15     App,  IV    |       not also vanish? i.e. when ab is nothing, whether Ab +
16     App,  IV    |      when ab is nothing, whether Ab + Ba be not also nothing?
17     App,  IV    |          whether the momentum of AB be not nothing? Let him