A (binary) relation ρ from a set S to a set T is a rule that stipulates, given any element s of S and any element t of T, whether s bears a certain relationship to I (written s ρ t) or not (written s ρ t). For example, if S is the set of living males and T is the set of living females, the relation ρ might be “is the son of”; if s denotes a certain man and t denotes a certain woman, we write s ρ t if s is the son of t, and s ρ t otherwise.


Span Tree Connected Graph Binary Relation Complete Graph Travel Salesman Problem 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media New York 2004

Authors and Affiliations

  • W. D. Wallis
    • 1
  1. 1.Department of MathematicsSouthern Illinois UniversityCarbondaleUSA

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