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(2)… by efficient cooperation

Published online by Cambridge University Press:  22 September 2016

J.B. Wilker
J.B. Wilker*
Affiliation:
Physical Sciences Division, Scarborough College, University of Toronto, Ontario M1C 1A4, Canada
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Extract

Let D and R be two non-empty sets. A function f: D → R is a rule for assigning to each element x belonging to D a single element y = f(x) belonging to R. The set D is called the domain of the function f and the set R is called its range.

Type
Sums of powers of natural numbers
Information
The Mathematical Gazette , Volume 64 , Issue 430 , December 1980 , pp. 239 - 244
Copyright
Copyright © Mathematical Association 1980

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References

1. Walker, R., The pigeonhole principle, Mathl Gaz. 61, 25–31 (No. 415, March 1977).Google Scholar
2. Gerrish, F., Surjections from an m-set to an n-set, Mathl Gaz. 63, 259–260 (No. 426, December 1979).Google Scholar