relations of a function

label Algebra
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Consider the relation R = {(2x,x2) : x 2 Z} on Z. (1) Is 6R9? (2) Does 1 belong to the domain of the relation R? (3) Is the relation R a function from Z into Z? Explain.

Feb 12th, 2015

yes! 1 belong to domain of R. The relation is function because Z's elements do have their images in Z.

Feb 12th, 2015

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Feb 12th, 2015
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Feb 12th, 2015
Aug 19th, 2017
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