Contrapositive of the statement 'If two numbers are not equal, then their squares are not equal', is
If the squares of two numbers are equal, then the numbers are equal
If the squares of two numbers are equal, then the numbers are not equal.
If the squares of two numbers are not equal, then the numbers are not equal
If the squares of two numbers are not equal, then the numbers are equal
Negation of the Boolean statement $( p \vee q ) \Rightarrow((\sim r ) \vee p )$ is equivalent to
If $p$ and $q$ are simple propositions, then $p \Rightarrow q$ is false when
Which of the following statements is a tautology?
If $\mathrm{p} \rightarrow(\mathrm{p} \wedge-\mathrm{q})$ is false, then the truth values of $p$ and $q$ are respectively