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August 1, 2014

Homework Help: Discrete Math

Posted by Laurey on Tuesday, February 8, 2011 at 9:04am.

Consider the following relation on R1, the set of real numbers

R1 = {(1,1), (1,2), (2,1), (2,2), (3,3), (4,4), (3,2), (2,3)}

Determine whether or not each relation is flexible, symmetric, anti-symmetric, or transitive.

* Reflexive because the relation contains (1,1), (2,2), (3,3), and (4,4)
* Symmetric because it contains (1,2) & (2,1) and (3,2) & (2,3)
* Antisymmetric (I'm confused with this one)
* Not Transitive because it contains (2,1) & (2,3) but not (1,3)

Would this be considered correct? I'm not sure about antisymmetric. Thanks for any helpful replies

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