§63 Continuation. The unity of theory
We may now ask what constitutes the unity of a science, and therewith the unity of its ﬁeld. For not every putting of truths together in a single association of truths, which might remain an entirely external one, constitutes a science. To a science, as we said in our ﬁrst chapter,1 a certain uniﬁed interconnection of demonstration pertains. This too, however, is not enough: it points to demonstration, to proof as something essentially pertaining to the Idea of Science, but fails to say what sort of unity of proof constitutes a science.