Q1: Determine whether the following statements are true or false. Provide reasoning as well. (a) If X₁ X2 and X2 X3, then X₁ ≤ X3. Tru (b) Continue from part (a). What is the necessary condition that you need to be able to state that X₁ = X2 X3? (c) Let X3 = X₁ UX₂ and X₁ = X₁ X₂. If X₁ CX2, then X4 CX3.

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