- § 195. What is order?
- § 196. Three theories of
*between* - § 197. First theory
- § 198. A relation is not
*between*its terms - § 199. Second theory of
*between* - § 200. There appear to be ultimate triangular relations
- § 201. Reasons for rejecting the second theory
- § 202. Third theory of
*between*to be rejected - § 203. Meaning of separation of couples
- § 204. Reduction to transitive asymmetrical relations
- § 205. This reduction is formal
- § 206. But is the reason why separation leads to order
- § 207. The second way of generating series is alone fundamental, and gives the meaning of order

The Principles of Mathematics was written by Bertrand Russell, and published in in 1903. It is now available in the Public Domain.