Basing himself upon Kant's "synthesis of transcendental apperception," Fichte concluded that the whole activity of the Ego in the synthesis of the matter of experience proceeds according to the forms of the judgment. To judge is to connect a predicate with a subject--an act of which the purely formal expression is a = a. This proposition would be impossible if the x which connects predicate and subject, did not rest upon a power to affirm unconditionally. For, the proposition does not mean, "a exists"; it means, "if a exists, then there exists a." Thus, a is most certainly not affirmed absolutely. Hence, if there is to be an absolute, unconditionally valid affirmation, there is no alternative but to declare the act of affirming itself to be absolute. Whereas a is conditioned, the affirming of a is unconditioned. This affirming is the act of the Ego which, thus, possesses the power to affirm absolutely and without conditions. In the proposition, a = a, the one a is affirmed only on condition of the other being presupposed. Moreover, the affirming is an act of the Ego. "If a is affirmed in the Ego, it is affirmed." [56] This connection is possible only on condition that there is in the Ego something always self-identical, which effects the transition from the one a to the other. The above-mentioned x is this self-identical aspect of the Ego. The Ego which affirms the one a is the same Ego as that which affirms the other a. This is to say Ego = Ego. But this proposition, expressed in judgment-form, "If the Ego is, it is," is meaningless. For, the Ego is not affirmed on condition of another Ego having been presupposed, but it presupposes itself. In short, the Ego is absolute and unconditioned. The hypothetical judgment-form which is the form of all judgments, so long as the absolute Ego is not presupposed, changes for the Ego into the form of the categorical affirmation of existence, "I am unconditionally." Fichte has another way of putting this: "the Ego originally affirms its own existence." [57] Clearly, this whole deduction is nothing but a sort of elementary school-drill by means of which Fichte tries to lead his readers to the point at which they will perceive for themselves the unconditioned activity of the Ego. His aim is to put clearly before their eyes that fundamental activity of the Ego in the absence of which there is no such thing as an Ego at all.