A relation R is defined on ordered pairs of integers as follows: (x,y)R(u,v) if x<u and y>v. Then R is
A
Neither a Partial Order nor an Equivalence Relation
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B
A Partial Order but not a Total Order
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C
A Total Order
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D
An Equivalence Relation
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Solution
The correct option is A Neither a Partial Order nor an Equivalence Relation (x,y)R(u,v) iff x<u and y>v (x,x)/R(x,x) since x/<x and x/>x
So R is not reflexive. ∴R is neither a partial order, nor an equivalent relation.