Canonical representation, 29, 36
— — , deduction of, 90
Capacity, 179
Car, 215, 257
— skidding, 203
Carbon dioxide, 81, 237
Card, identifying, 125
— cutting, 141
Cash register, 15
Casting, 26
Cat, 122, 197
Causalgia, 82
Chain, Markov, 165
Chair, 131
Chameleon, 130
Change of state, 9
— of input, 43
Channel, 130, 154
— capacity, 179
Chaos, 131
Chasing, 145
Chess, 12, 241
Clock, 25
Closure, 11, 28, 76, 108
Cloud, 30
Coding, 140, 243
— , alphabetic, 11
— in brain, 140
Coenetic variable, 212
289
AN INTRODUCTION TO CYBERNETICS
INDEX
Coffee, 123, 137
Coin, 156, 232
Cold, 238
Commander, 211
Communication, 123
Complex system, 4
Component, 31
Composition, 21
Compound, 216, 217
Computer, 96, 116
Conditioned reflex, 133
Cone, 73
Confidence, 163
Confluence, 134
Conjuring, 114, 125, 137
Connexion, 65
— , deducing, 92
Conservation of energy, 131, 265
Constant, 215
Constraint, 100, 127, 173, 247
Continuity, 9, 28
— as constraint, 133
Control, 193, 213
— -flow chart, 57
— by error, 219
— panel, 88
Convergence, 134
Cooling, 26, 137
Correction, 211
Corruption, 186
Cough, 247
Counterfeit coin, 156
Coupling, 48
— , random, 63
— and equilibrium, 82
— Markovian machines, 227
Crane, 240
Cricket, 15
Criterion, 257
Cube, 73
Culture medium, 29, 30
Cutting pack, 141
Cybernetics defined, 1
Cycle, 75
DARLINGTON, C. D., 193
Death, 197
Decay of variety, 136
De-coding, 141
Definition, vii
Degeneracy, 46
Degree of confidence, 163
Degrees of freedom, 129
Delay, 156
Delayer, 148
Derivative, 116
Design, 251
Design for a Brain, v, 41, 52, 79, 84
116, 143, 196, 262, 273
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Determinacy, search for, 91
— in Bridge, 259
Determinate machine, 24, 225
Diagonal, 16
Diagram of immediate effects, 57
— — — , deduction of, 92
Diagram of ultimate effects, 57
Dichotomy, 261
Dictator, 213
Die, 169
Difference, 9
Differential equation, 35, 96
— — , stability theory, 113
Discrete change, 9, 28
Discrimination, 103
Displacement, 77
Dissociation, 169
Distinction, 103
Distortion, 188
Disturbance, 77, 198
Repetitive, 247
Divergence, 134
Dominance, 53
Door, 86
Duel, 201
Duration of selection, 260
EARTH, CONSTRAINTS ON, 131
— , age of, 196
— , reducibility on, 262
Economic system, 37
Effect, immediate, 56
— , ultimate, 57
Effector, 220
Elastic, 112
Electro-mechanical analogy, 96
Element, 122, 191
Elimination, 18
Embody, 29
Emergent property, 110
Energy, 3, 131, 240, 265
English, 170
Entropy (of communication theory),
174, 207
Entropy (of thermodynamics), 112
136, 177
Environment, 271
Epistemology, 87
Equality of vectors, 31
Equations, differential, 35
— , unsolvable, 37
Equilibrium, 74
— , stable, 77
— , unstable, 78
— , neutral, 78
— and coupling, 82
— in Markov chain, 167, 229
— , absent, 258
Equivocation, 189
Error, 190, 219
Essential variables, 197
Ethyl acetate, 71
Even and odd, 104
Everyman, 122
Evolution, 196
Exercises, vi
Experience, law of, 137
Experimentation, 89
Exponential growth, 70
— series, 173
Expression, 30
Eyes, 130
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FACTOR, 5
Feedback, 51, 53, 237
— and stability, 80
— and variety, 157
Felis, 122
Fencer, 201
Fermentation, 125, 183
Fibonacci, 19
Fisher, Sir Ronald, 5, 245, 259
— and F. Yates, 234, 273
Fluxion, 74
Fly-paper, 167, 229
Flying Saucer, 87
Form, 31
Fourier analysis, 47
Frequency, 47, 163
GALE WARNING, 140
Galileo, 121
Game, 202, 240
Gas law, 45, 62
Gene-pattern, 62, 198, 270
General, 211
Geometry, 2
Ghosts, 60
Goal, 81, 219, 230
Goldman, S., 110, 273
Golfer, 231
Grand Disturbance, 249
— Response, 249
Granit, R., 82, 273
Graph, 94
— , kinematic, 22
— as constraint, 130
Guest, 204
Gunpowder, 70
HALF-TRUTH, 104
Haunted house, 60
Heart, 252
History of system, 115, 170
Hitler, A., 213
Homeostasis, 81, 196
Homeostat, 83, 233, 260, 271
Homo, 198, 252
Homomorphism, 103
Hot or cold ?, 235
House lights, 125
Humours, 191
Hunt and stick, 230
Hunter, 200
Hunting, 236
Hydrogen chloride, 110
— 1odide, 122
IDENTITY, 15
Immediate effect, 56
Diagram, 57
Inaccessible, 92
Incense, 60
Incessant transmission, 161
Incomplete observation, 113
Incubator, 236
Independence in behaviour, 58
— in variety, 128
Infinitesimal, 9
Information, 123, 245
— theory, 3
— , gain of, 178
Initial state as noise, 217
Input, 44, 87
— and design, 254
Insect, 165
Insolubility, 69
Instinct, 26
Instrumentation, 143
Insulator, 93
290
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291
AN INTRODUCTION TO CYBERNETICS
INDEX
Integration, 37, 173
Intelligence, 82, 271
Interference, 158
Invariant, 73, 121, 130, 215
Inverse, 142
Inversion, 145
Inverter, 147
Iionization, 122
I.Q., 272
Isomorphism, 92, 97
Iterated systems, 262
JOINING, 48
— and equilibrium, 82
Jump, 9, 28
KEY, 142
Kinematic graph, 22
LACTOSE, 125
Laplace transform, 145
Large system: see Very
Lashley, K. S., 62, 273
Lattice, 107
Laughter, 60
Law of Nature, 130
— of Experience, 137
— of Requisite Variety, 206
Learning, 92, 133, 271
Lethal, 197
Lewin, K., 113,273
Lights, house, 125
— , traffic, 127
Limit, 197
— of regulation, 211
Line, transformation of, 20
— of behaviour, 25
Linear system, 36
LocalisatiOn, 68, 112
Locomotive, 80
Logarithm to new base, 126
Lumbricus, 252
MACHINE, THEORY OF, 1
— , determinate, 24
— with input, 44
— seeing itself, 55
— , test for, 90
— as constraint, 132
— set of states, 135
— , Markovian, 225
— as regulator, 251
— as selector, 259
MacKay, D. M., 252, 273
Magnetic tape, 116
Maiden over, 15
Main diagonal, 16
Manipulation, 92
Maneuvre, 211
Many-one, 15
Map, 94
Markov chain, 91, 166
Markovian machine, 225
Massless spring, 2
Materiality, 60
Mathematical physics, 2, 27, 96
Matrix, 15
— transition probabilities, 163
— , pay-off, 241
Matter, laws of, 60
Maze, 86, 114, 134, 228
Meaning, 143
Mechanism, 24
Mega-pick, 261
Memory, 115, 170
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Message, 123
Mine, 92
Mode, 101
Model, 96, 105
Momentum, 40
Monitoring, 180
Morgenstern, 0., 241, 273
Motor channel, 220
Mouse, 197
Multiplication, 104
— , mental, 180
Myelin, 221
NATURAL SELECTION, 196
Nature, law of, 130
Neighbourhood, 77
Negative feedback, 80
Network, 66, 93, 160, 252
Neumann, J. von, 62, 241, 273
Neurons, 252
— , number of, 62
— , circuit of, 82, 137
Neutral equilibrium, 78
Nitrogen, 64
Noise, 186, 216
— , correction of, 211
Noises, ghostly, 60
Non-determinate, 161
Normal co-ordinates, 101
Notation, 13, 20, 33
OBJECT, 131
Observation, incomplete, 113
Odd and even, 104
Omen, 259
One-one, 14
Operand, 10
Operator, 10
— of clock, 25
Organ-playing, 60
Oscillation, 168
Oscillator, 36
Outcome, 203
Output, 46, 88
Ovum, 3
Oxygen, 222
Oyster, 69
PANTAGRUEL, 129
Parameter, 43
Parry, 201, 241
Part, 100, 112
— and equilibrium, 82
Part-function, 66
Pattern, 30, 94
Pavlov, I. p., 133, 273
Pay-off matrix, 241
Pendulum, 34, 39, 121
— , feedback within, 54
Permanence, 193
Persistence, 108, 193
Personality Test, 125
Petrol, 81
PH, 237
Phase space, 37
Photograph, 94
Physiological limits, 197
Physiology, 193
π, 259
Pilot, 211
— , automatic, 199, 200
Playfair, 141
Pneumatic amplifier, 238
Pneumonia, 26
Poincar é, H., 113
Point, representative, 22
Pool, 165
Population, 29, 30, 167
Position, 31
Positive feedback, 81
Posture, 30
Power amplifier, 238
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