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If p and q are two simple propositions, ...

If p and q are two simple propositions, then ` p to q` is false when

A

p is true and q is true

B

p is false and q is true

C

p is true and q is false

D

p and q are false

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The correct Answer is:
C
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OBJECTIVE RD SHARMA-MATHEMATICAL REASONING -Exercise
  1. Let p and q be two propositions . Then the inverse of the implication ...

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  2. Let p and q be two propostions. Then , the contrapositive of the impli...

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  3. If p and q are two simple propositions, then p to q is false when

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  4. If p and q are two statement then (p <-> ~ q) is true when : (a) p and...

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  5. for any three propositions p,q and r, the proposition ( p ^^ q) ^^ ...

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  6. If p and q are two propositions, then ~ ( p harr q) is

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  7. p ^^ ( q ^^ r) is logically equivalent to

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  8. ~ ( ~p) harr p is

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  9. Which of the following is a proposition ?

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  10. Which of the following propositions is a tautology ?

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  11. Which of the following proposition is a tautology ?

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  12. Which of the following propositions is a contradiction ?

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  13. p ^^ q to p is

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  14. Which of the following is false ?

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  15. Given that water freezes below zero degree celsius. Consider the fo...

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  16. If p,q,r have truth values T,F,T respectively, which of the following ...

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  17. If p to (q vv r) is false, then the truth values of p,q,r are respect...

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  18. The negation of the propostion q vv ~ ( p ^^ r) is

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  19. Which of the following is logically equivalent to ( p^q) ?

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  20. Which of the following is logically equivalent to ~(~pto q)?

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