Part IV - Structural factors in non-aristotelian languages...............................................233
        11. On function......................................................................................234
        12. On order.........................................................................................252
            A. Undefined terms...............................................................................253
            B. Order and the nervous system..................................................................258
            C. Structure, realtions, and multi-dimensional order.............................................262
            D. Order and the problems of extension and intension.............................................272
            E. Concluding remarks on order...................................................................283
        13. On relations.....................................................................................289
        14. On the notion of infinity........................................................................305
        15. The 'infinitesimal' and 'cause and effect'.......................................................315
        16. On the existence of relations....................................................................321
        17. On the notions of 'matter', 'space', 'time'......................................................324
            A. Structural considerations.....................................................................325
            B. The neurological function of abstracting......................................................336
            C. Problems of adjustment........................................................................340
            D. Semantic considerations.......................................................................342
    Part V - On the non-aristotelian language called mathematics.............................................346
        18. Mathematics as a language of a structure simialr to the structure of the world...................347
        19. Mathematics as a language of a structure similar to the structure of the human nervous system....368
            A. Introductory..................................................................................368
            B. General.......................................................................................375
            C. The psycho-logical importance of the theory of aggregates and the theory of groups............380
            D. Similarity in structure of mathematics and of our nervous system..............................387
    Part VI - On the foundation of psychophysiology..........................................................412
        20. General considerations...........................................................................413
        21. On conditional reflexes..........................................................................424
        22. On 'inhibition'..................................................................................439
        23. On conditional reactions of higher orders and psychiatry.........................................456