Kant holds that if judgments are distinguished in accord with the ways concepts are combined in them, there are four ways in which every judgment must be classified. Kant holds that what makes the difference between a problematic, an assertoric and an apodictic judgment is which of these three concepts is present. In passage after passage, Kant makes it clear that the transcendental deduction is intended to set forth and make intelligible the objective validity of pure intellectual concepts. Many commentators repeat Kant's expression, objective validity, but fail to recognize that in seeking to establish the objective validity of the connective concepts, Kant is simply seeking to show that they are concepts holding of objects, and are not merely concepts fulfilling a connective function. Kant points out that the subjective unity of introspection is dependent on what happens to present itself at the moment to consciousness; it is therefore an empirical unity. The transcendental unity of apperception is that unity by means of which all the various matters in some given intuition are united in a concept of the object.