# Answer to Question #44535 in Discrete Mathematics for JASHVINDER

Question #44535

Any subset of A × A is called a relation on the set A. A relation R on A is symmetric if

(a, b) ∈ R ⇒ (b, a) ∈ R ∀ a, b ∈ A. Give one example each, with justification, of

i) a symmetric relation on ,

ii) a relation that is not symmetric on the set {2, 3, 5, 7}.

(a, b) ∈ R ⇒ (b, a) ∈ R ∀ a, b ∈ A. Give one example each, with justification, of

i) a symmetric relation on ,

ii) a relation that is not symmetric on the set {2, 3, 5, 7}.

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