A = X'? There are two ways of thinking about the 'solution' to this. First, you can question the linearity assumption on which it is based. Is it true that (A + B)' = A'+ B'? A moment's reflection shows that the answer is no. A and B, unreduced lived experiences can cancel each other out. They do not add by agglutination but by resolution of their individual tensions; they add vectorially. A'and B' however, the reduced, detached, eidetic versions of the same experiences, never cancel but accumulate; they have no directedness, (unless they are all seen to be directed the same way, as say, Ego to Other), and they do not have negatives; they are like positive scalars, except that they are still complexly multidimensional. This slightly paradoxical fact of experience, where the derivation could be taken more generally to stand for any internal or intrinsic representation, could be seen as crucial to aesthetics.
A second approach would be to accept that there is a solution X of the form X = A + B + .. + E, and to note that B, C, ... E represent more and more narrow focused experiences of the actuality of A, so that X is the hyper-actual form of A. This is at the very least an ideal of experience, and you might observe that this is what is aspired to, rightly or wrongly, in those various forms of intensification of experience by placing it at the edge of death.