... as the principle of the figurative synthesis, i.e., of the forms of intuition; space and time are themselves conceived as synthetic unities, and spontaneity, the absolute syntheticactivity of the ... must be the transcendental synthesis of imagination. This synthesis is an action of the understanding on the sensibility; and is its firstapplication – and thereby the ground of all its other applications ... that “logic, then, has forits presupposition the science of appearing spirit, which contains and presents the necessity and, accordingly, the demonstration of the truth of the standpoint that...