A System of Logic: Ratiocinative and Inductive, 7th Edition, Vol. I
CHAPTER VII. _Examination of some Opinions opposed to
the preceding doctrines._
§ 1. Doctrine of the Universal Postulate 294
2. The test of inconceivability does not represent the aggregate of past experience 296
3. --nor is implied in every process of thought 299
4. Sir W. Hamilton's opinion on the Principles of Contradiction and Excluded Middle 306