Determine whether the given relation is
Chapter 8, Problem 33E(choose chapter or problem)
Determine whether the given relation is reflexive, symmetric, transitive, or none of these. Justify your answers.ExerciseLet A be the set of all lines in the plane. A relation R is defined on A as follows: For all l1 and l2 in Al1 R l2 ? l1 is perpendicular to l2.
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