  From the outset of the Phaedo, particulars are branded as material and, as a result, spoken of in the pejorative. Indeed, matter seems to be at the root of the other features that characterize particulars. What is extended in space (and through, or in, time) is body. The composite is also linked with the material. Because a material particular is composite, it is also multi-form or complex (Phaedo 80b4). Complex material particulars are subject to change in so far as their composite nature invites dissolution or construction, or more generally coming-to-be or  perishing.[12]  When taken broadly, as it is at Phaedo 100ff (or in the analogies of the middle books of the Republic), generation and destruction includes the exchange of properties. And since compresence requires complexity, the material nature of particulars is one of the roots of each material, sensible particular being both F and not-F.