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Computer Science - UGC NET 2021 [ Question ID = 2351 ]

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1 1 vote

Which of the following are logically equivalent ?

  1. ¬p -> ( q -> r ) and q -> ( p v r )
  2. ( p -> q ) -> r and p -> ( q -> r )
  3. ( p -> q ) -> ( r -> s ) and ( p -> r) -> ( q -> s )

Choose the correct answer from the options given : 

  1. i and ii only
  2. i and iii only
  3. i only
  4. ii and iii only

3 Answers

2 2 votes

Implication is does not satisfy the commutative property , hence B is false

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