| Definitions of definitions. (1, pp. 53-54) |
| System in a general, all-inclusive sense, and as related to the environment. (C, p. 453 and 10, p. 15) |
| Aspects of a theory. (E, p. 17) |
| Correspondence of elements of a set as a function. (3, p. 372) |
| Organism - structure, function, and evolution. (E, p. 22) |
| Environment. (10, pp. 52-53) |
| Learning experiment as stimulus and response. (5, p. 4) |
| Cybernetics. (F, p. 5) |
| Stochastic Process. (10, p. 259) |
| Hypothetico-deductive Method. (D, p. 179) |
| Positive and negative feedback. (3, p. 366) |