Question

The contrapositive of (p ∧ r) → q is ______.

विकल्प

• ∼q → ∼p ∨ ∼r 

• ∼q → (p ∧ r) 

• q → (p ∧ r) 

• ∼p ∨ ∼r → ∼q

Answer 1

The contrapositive of (p Λ r) → q is ∼q → ∼p ∨ ∼r.

Explanation:

Contrapositive of (p Λ r) → q is

∼q → ∼(p ∧ r), i.e., ∼q → ∼p ∨ ∼r