The logically equivalent preposition of $p \Leftrightarrow q$ is

  • [AIEEE 2012]
  • A

    $\left( {p \Rightarrow q} \right) \wedge \left( {q \Rightarrow p} \right)$

  • B

    $p \wedge q$

  • C

    $\left( {p \wedge q} \right) \vee \left( {q \Rightarrow p} \right)$

  • D

    $\left( {p \wedge q} \right) \Rightarrow \left( {q  \vee p} \right)$

Similar Questions

The logical statement $(p \Rightarrow q){\wedge}(q \Rightarrow \sim p)$ is equivalent to

  • [JEE MAIN 2020]

Statement $-1 :$ $\sim (p \leftrightarrow \sim q)$ is equivalent to $p\leftrightarrow q $

Statement $-2 :$ $\sim (p \leftrightarrow \sim q)$ s a tautology

  • [AIEEE 2009]

Negation of “Paris in France and London is in England” is

Among the statements

$(S1)$: $(p \Rightarrow q) \vee((\sim p) \wedge q)$ is a tautology

$(S2)$: $(q \Rightarrow p) \Rightarrow((\sim p) \wedge q)$ is a contradiction

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Which of the following is a tautology?

  • [JEE MAIN 2020]