The proposition $\left( { \sim p} \right) \vee \left( {p\, \wedge  \sim q} \right)$

Which of the following is the negation of the statement "for all $M\,>\,0$, there exists $x \in S$ such that $\mathrm{x} \geq \mathrm{M}^{\prime \prime} ?$

The contrapositive of the statement "if I am not feeling well, then I will go to the doctor" is

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

The number of choices of $\Delta \in\{\wedge, \vee, \Rightarrow, \Leftrightarrow\}$, such that $( p \Delta q ) \Rightarrow(( p \Delta \sim q ) \vee((\sim p ) \Delta q ))$ is a tautology, is

Contrapositive of the statement 'If two numbers are not equal, then their squares are not equal', is