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1. |
Consider the relation: R’ (x, y) if and only if x, y>0 over the set of non-zero rational numbers,then R’ is _________ |
A. | not equivalence relation |
B. | an equivalence relation |
C. | transitive and asymmetry relation |
D. | reflexive and antisymmetric relation |
Answer» C. transitive and asymmetry relation | |