Question

if (p ∧ q) then (q ∨ r)

¬ (p → q) ≡ p ∧ ¬q

Answer 1

Solution

Given that (p ∧ q) then (q ∨ r)

¬ (p → q) ≡ p ∧ ¬q

The proof is indicated by the Truth Table shown below