Part IV - Structural factors in non-aristotelian languages...............................................23311. On function......................................................................................23412. On order.........................................................................................252A. Undefined terms...............................................................................253B. Order and the nervous system..................................................................258C. Structure, realtions, and multi-dimensional order.............................................262D. Order and the problems of extension and intension.............................................272E. Concluding remarks on order...................................................................28313. On relations.....................................................................................28914. On the notion of infinity........................................................................30515. The 'infinitesimal' and 'cause and effect'.......................................................31516. On the existence of relations....................................................................32117. On the notions of 'matter', 'space', 'time'......................................................324A. Structural considerations.....................................................................325B. The neurological function of abstracting......................................................336C. Problems of adjustment........................................................................340D. Semantic considerations.......................................................................342Part V - On the non-aristotelian language called mathematics.............................................34618. Mathematics as a language of a structure simialr to the structure of the world...................34719. Mathematics as a language of a structure similar to the structure of the human nervous system....368A. Introductory..................................................................................368B. General.......................................................................................375C. The psycho-logical importance of the theory of aggregates and the theory of groups............380D. Similarity in structure of mathematics and of our nervous system..............................387Part VI - On the foundation of psychophysiology..........................................................41220. General considerations...........................................................................41321. On conditional reflexes..........................................................................42422. On 'inhibition'..................................................................................43923. On conditional reactions of higher orders and psychiatry.........................................456