Page:Ferrier's Works Volume 1 - Institutes of Metaphysic (1875 ed.).djvu/355

RhPROP. XV.————. The counter-proposition declares that each and all of the things specified in the proposition are known only as phenomenal. But nothing can be known only as phenomenal; because (by Definition) the phenomenal is that which can be known only along with something else; and therefore to suppose a thing to be known only as phenomenal would be to suppose it known both with, and without, something else being known along with it, which of course is contradictory. What the parts of cognition enumerated in the proposition are, when known in their synthetic totality, is declared in Proposition XVII.; the intervening proposition (XVI.) being required to show that there is a substantial in cognition.