Acknowledgements. Part One: The Subject. An Introduction to Matte-Blanco's Reformulation of the Freudian Unconscious and his Conceptualization of the Internal World. Bi-logical Structures, the Unconscious, and the Mathematical Infinite. The Fundamental Antinomy of Human Beings and World. Part Two: Projection, Introjection, and Internal World. Freud's Concept of Projection in the Light of the Three Logics. Identification and Projection. The Notion of Internal World: Problems and Hopes. A Perspective on Melanie Klein's Contribution. Part Three: Projective and Interjective Processes: A Bi-logical Point of View. Some Guiding Concepts for Understanding Clinical Reality. Levels of Depth: A Working Scheme for Use in Clinical Practice. The Fundamental Antinomy as Seen in Clinical Examples. Part Four: Symmetrical Frenzy, Bi-logical Frenzy, and Bi-model Frenzy. The Multiplication of Three Dimensional Objects. Bi-model Frenzy. The Upheaval of Spatial and Temporal Structures in the Dream World: The Spatio-temporal Miltidim Structure. Part Five: Towards the Future. The Notion of Object. Some More Mathematical Concepts of Space, Dimension, Outside, and Inside. The Concept of Internal World: Past, Present and Future. Appendix. Bibliography. Index.