Taken together, the above theories present a group of metapsychological assumptions. Therefore, the inclusive group of the different classical theories provides a cross-sectional view of human mental processes. There are six "points of view", five described by Freud and a sixth added by Hartmann. Unconscious processes can therefore be evaluated from each of these six points of view:Rapaport, Gill. 1959. "The Points of View and Assumptions of Metapsychology." The International Journal of Psychoanalysis 40: 153–62. .
Taken together, the above theories present a group of metapsychological assumptions. Therefore, the inclusive group of the different classical theories provides a cross-sectional view of human mental processes. There are six "points of view", five described by Freud and a sixth added by Hartmann. Unconscious processes can therefore be evaluated from each of these six points of view:Rapaport, Gill. 1959. "The Points of View and Assumptions of Metapsychology." The International Journal of Psychoanalysis 40: 153–62. .