state gov OSSC CRE (Junior Steno, JG Typist and Typist-cum-Scribe) Test Series 2025 Computer Awareness Computer Fundamentals or Terminologies
Which of the following denotes the commutativity of ∨?
1
((α ∧ β) ∧ γ) ≡ (α ∧ (β ∧ γ))
2
((α ∨ β) ∨ γ) ≡ (α ∨ (β ∨ γ))
3
(α ∨ β) ≡ (β ∨ α)
4
(α ∧ β) ≡ (β ∧ α)