[26] As we shall see later, the real importance of the passage in which Kant professes to effect the transition from the forms of judgement to the categories (B. 102-5, M. 62-3) lies in its introduction of a new and important line of thought, on which the transcendental deduction turns. Consideration of it is therefore deferred to the next chapter.
[27] I owe this view of the distinction to Professor Cook Wilson's lectures on logic.
[28] 'Some coroners are doctors' of course in some contexts means, 'it is possible for a coroner to be a doctor,' and is therefore not numerical; but understood in this sense it is merely a weakened form of the universal judgement in which the connexion apprehended between subject and predicate terms is incomplete.
[29] No doubt, as the schematism of the categories shows, Kant does not think that the hypothetical judgement directly involves the conception of cause and effect, i. e. of the relation of necessary succession between the various states of physical things. The point is, however, that the hypothetical judgement does not involve it at all.
CHAPTER VIII
THE TRANSCENDENTAL DEDUCTION OF THE CATEGORIES
The aim of the Transcendental Deduction is to show that the categories, though a priori as originating in the understanding, are valid, i. e. applicable to individual things. It is the part of the Critique which has attracted most attention and which is the most difficult to follow. The difficulty of interpretation is increased rather than diminished by the complete rewriting of this portion in the second edition. For the second version, though it does not imply a change of view, is undoubtedly even more obscure than the first. It indeed makes one new contribution to the subject by adding an important link in the argument,[1] but the importance of the link is nullified by the fact that it is not really the link which it professes to be. The method of treatment adopted here will be to consider only the minimum of passages necessary to elucidate Kant's meaning and to make use primarily of the first edition.
It is necessary, however, first to consider the passage in the Metaphysical Deduction which nominally connects the list of categories with the list of forms of judgement.[2] For its real function is to introduce a new and third account of knowledge, which forms the keynote of the Transcendental Deduction.[3]