engineering recuitment ISRO Scientist Computer Science Mock Test Engineering Mathematics Mathematical Logic Propositional Equivalence
The statement (¬ p) ⇒ (¬ q) is logically equivalent to which of the statements below?
- p ⇒ q
- q ⇒ p
- (¬q) ∨ p
- (¬p) ∨ q
1
I only
2
II and IV only
3
II only
4
II and III only