Let R be the set of all real numbers and define a relation
Chapter 8, Problem 5E(choose chapter or problem)
Problem 5E
Let R be the set of all real numbers and define a relation R on R × R as follows: For all (a, b) and (c, d) in R × R,
( a , b ) R ( c , d ) ⇔ either a < c or both a = c and b ≤ d.
Is R a partial order relation? Prove or give a counterexample.
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