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Summary: Simpler proof that seeing k keeps cylindrance, in the 2n space, down to k. |
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| Interaction in set theory Semi-group Ljapin's book Transformation and semi-groups |
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| 6490 | 6491 |
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Ross indexed the following pages under the keyword: "Semi-group".
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| These images are reproduced courtesy of The Estate of W. Ross Ashby. Copyright 1972, 2008 © The Estate of W. Ross Ashby |