The first questions the conditions of a relation between representations from the point of view of what in general makes them possible: it thus uncovers a transcendental field in which the subject, which is never given to experience (since it is not empirical), but which is finite (since there is no intellectual intuition), determines in its relation to an object all the formal conditions of experience in general; it is the analysis of the transcendental subject that isolates the foundation of a possible synthesis between representations.