[8] This shows the ground of the Kantian explanation of matter, that it is "that which is movable in space," for motion consists simply in the union of space and time.
[9] Not, as Kant holds, from the knowledge of time, as will be explained in the Appendix.
[10] On this see "The Fourfold Root of the Principle of Sufficient Reason," § 49.
[11] The first four chapters of the first of the supplementary books belong to these seven paragraphs.
