Husserl's originality is to be recognized in that: (a) he distinguishes number from concept, that is, from a constructum, a psychological artifact; (b) he underlines that mathematical or logical synthesis is irreducible to the order in both senses of the word of psychological temporality; (c) he bases his entire psychological analysis on the already given possibility of an objective etwas uberhaupt, which Frege will criticize under the denomination bloodless specter (blutloses Gespenst) but which designates the intentional dimension of objectivity, the transcendental relation to the object that no psychological genesis can institute but can only presuppose in its own possibility.