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PROPOSITION XIX.
WHAT THE RELATIVE IN COGNITION IS.
Objects, whatever they may be, are the relative in cognition; matter, in all its varieties, is the relative in cognition; thoughts or mental states whatsoever are the relative in cognition; the universal is the relative in cognition; the particular is the relative in cognition; the ego, or mind, or subject is the relative in cognition.
DEMONSTRATION.
The demonstration is a mere reiteration of demonstration XV.; the word "relative" being substituted for the word "phenomenal." Each of the items specified in Prop. XIX. is the relative in cognition, because each of them can be known only along with its correlative. Thus, objects can be known only in relation to some correlative subject