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PROPOSITION XVII.
WHAT THE SUBSTANTIAL IN COGNITION IS.
Object plus subject is the substantial in cognition; matter mecum is the substantial in cognition; thoughts or mental states whatsoever, together with the self or subject are the substantial in cognition; the universal, in union with the particular, is the substantial in cognition; the ego or mind in any determinate condition, or with any thing or thought present to it, is the substantial in cognition. This synthesis, thus variously expressed, is the substantial, and the only substantial, in cognition.
DEMONSTRATION.
Object plus subject—matter mecum—thoughts or mental states whatsoever, together with the self or subject—the ego or mind in any determinate con-
