Newton's identity

Newton's identity

[nüt·ənz ī′dendə‚dē]
(mathematics)
The identity C (n, r) C (r, k) = C (n, k) C (n - k, r-k), where, in general, C (n, r) is the number of distinct subsets of r elements in a set of n elements (the binomial coefficient).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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This realization about his own father's struggle with supporting the household speaks to the core of Newton's identity. That is, the role Walter Newton played in his seventh son's life directly influenced Huey's synthesis of revolutionary politics and spiritual ideology.