 For a determinate body to exist at all, Avicenna believes, it must have a determinate shape, and so be three dimensional, and so be localized in space. Both of these features are the result of its corporeal form (For a fuller discussion see Hyman 1965; Shihadeh 2014; Lammer 2018, §3.1). When the form of corporeality comes to inform matter, there comes to be a single unified body, existing on account of its particular and individual form of corporeality. Should the body be physically divided, the particular and individual form of corporeality is not so much divided as destroyed and replaced with two new particular and individual forms of corporeality corresponding with two new bodies. It is essentially the form of corporeality that unifies and makes a body numerically and actually one. Additionally, while the form of corporeality makes the body actually one, it also makes the body potentially many. That is to say, the form of corporeality is the cause of a body’s being three-dimensional such that one can posit such divisions as right-side and left-side in it. 