| This image is reproduced courtesy of The Estate of W. Ross Ashby. Copyright 1972, 2008 © The Estate of W. Ross Ashby |
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| 4658 | Volume 18 | 1953 | 4659 | Volume 18 | 1953 |
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Homeostasis variety is necessary Regulation variety is necessary Requisite Variety, Law of stated |
Entropy necessary for regulation Output variety in Variety necessary for regulation Summary: Only variation can force variation down - exact conditions necessary. 4662, 4674, 4750 |
| This image is reproduced courtesy of The Estate of W. Ross Ashby. Copyright 1972, 2008 © The Estate of W. Ross Ashby |
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