If what is meant is that the infinite divisibility of motion...

If what is meant is that the infinite divisibility of motion implies that the continuous amount and quantity (rather than number) is finite from one side and infinite from another, because every part of its infinite parts will have a quantity, and the collection of these amounts will be infinite, the answer to this is that even if every extension is divisible into an infinite number of parts, the amount of any extension will still be a fraction of the amount of the whole.

Hence, the sum of the quantities of the infinite fractions of motion will be the finite amount of the motion itself: (1/¥ ´ ¥=1). It must be mentioned that this problem is not specific to motion, but covers all extensions, such as line and time. For this reason, those who raise these doubts consider every limited line to be composed of a limited number of extensionless points, and every limited portion of time to be composed of a determinate number of instants.

They believe that although the points are not extended, a collection of several points could bring a line into existence: though an instant has no length or extension, a set of several of them brings about a portion of time; likewise, a collection of rests brings about motion; in reality, that which has objective existence are points, instants and rests. Line, time and motion are concepts abstracted from their collections. In other words, they believe in ‘indivisible parts’ ( juz’ lā…