Antinomicity is not necessarily dependent on negation; there is a more general conception of antinomicity based on the fundamental idea of opposition. To study this fact is indispensable to show first that truth and falsity are independent of assertion and negation. Then it can be seen that antinomies can be found everywhere, and that some single categories are in intrinsic opposition with themselves while others are opposed to one another in pairs. An antinomic ‘manifesto’ concludes the work.