We, Reason, Practical Idea

One of the peculiarities of Kant's triad of Rational Ideas--Soul, World, God--is that in his system, the third is the synthesis of the first two.  Another is the inconsistent translation of the three into Practical correlates.  For, if, as he proposes, the Soul qua Practical is an Agent, not a subject of Cognition, then the analogous 'World' should be, similarly, a Society, e. g. his Kingdom of Ends.  Accordingly, the synthesis of the two Ideas should be We, which could also provide him with a basis for a solution to the otherwise unresolved problem of explaining the possibility of Noumenal Plurality.  So, within his system is the potential for the classification of We as a Practical Idea.