Question

Let U = Z⁺ ∪ { 0 }.
Let R₁ = { ( x, y ) | x ≠ y }
Let R₂ = { ( x, y ) | x = y }
Let R₃ = { ( x, y ) | x ≥ y }
Let R₄ = { ( x, y ) | x ≤ y }
Let R₅ = { ( x, y ) | x > y }
Let R₆ = { ( x, y ) | x < y }
Find:

d) R₅ ⊕ R₆
e) R₂ ∘ R₆
f) R₃ ∘ R₅

Answer 1