$\sim(\sim p \rightarrow q) \equiv$

The Boolean expression $(p \wedge \sim q) \Rightarrow (q \vee \sim p)$ is equivalent to:

Identify the type of "Or" used in the following statement and check whether the statement is true or false:
$\sqrt{2}$ is a rational number or an irrational number.

Which of the following is not a statement?

Write the following statement in the form "if $p$,then $q$":
$r$: You can access the website only if you pay a subscription fee.

Which of the following is a contradiction?