Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Engineering Mathematics Set Theory & Algebra Boolean Algebra
Which one of the following is NOT equivalent to p ↔ q?
1
(¬ p ⋁ q) ⋀ (p ⋁ ¬ q)
2
(¬ p ⋁ q) ⋀ (q → p)
3
(¬ p ⋀ q) ⋁ (p ⋀ ¬ q)
4
(¬ p ⋀ ¬ q) ⋁ (p ⋀ q)