These two statements pose a fundamental problem for any interpretation of the nature of synthesis in the Critique. Whilst the first one given indicates that the unity of intuition is produced by the same function that gives unity to a judgment, the second indicates that the unity of intuition does not belong to the concept of the understanding. There would appear here to be a straight case of self-contradiction and if this impression is to be removed in the interest of a charitable reading of the Critique this would appear to require major hermeneutic work. In this chapter I will devote attention to some of the salient characteristics of what I take to be the most important ways of addressing this question of understanding the nature of the relationship between synthesis and intuition. The result of this will be to release the nature of the problem that has to be resolved by this work in terms of the account I will be giving of the transcendental psychology of the Critique and it should be the effect of the accounts offered here to persuade the reader that there is a problem that does need to be addressed.