Knuth equivalence
plural of carpenter's pencil
Having a label, tagged. / Defined or described. / (chemistry) Having an atom replaced by a radioactive isotope
(physics) The attenuation of an electromagnetic wave as it propagates through space
A relationship that considers two elements equivalent if one can be obtained from the other by a sequence of transformations of the form yzx -> yxz whenever x zxy whenever x ≤ y < z.
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