Question

Write the dual of (p ∨ q) ∨ r ≡ p ∨ (q ∨ r)

Answer 1

Given expression:

(p ∨ q) ∨ r ≡ p ∨ (q ∨ r)

Step: Replace every ∨ and ∧

(p ∧ q) ∧ r ≡ p ∧ (q ∧ r)