Definerelations , ⊆ E2 × E asfollows:((X, Y), Z) ∈ if and only if thereis x ∈ X and y ∈ Y suchthat x + y ∈ Z
((X, Y), Z) ∈ if and only if thereis x ∈ X and y ∈ Y suchthat xy ∈ Z (i) Show that is afunction.
(ii) Show that is a function.
Define relations , ⊆ E2 × E as follows: ((X, Y), Z) ∈ if and only if there is x ∈ X and y ∈ Y such that x + y ∈ Z (
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Define relations , ⊆ E2 × E as follows: ((X, Y), Z) ∈ if and only if there is x ∈ X and y ∈ Y such that x + y ∈ Z (
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