Write the following statement in the form "if $p$,then $q$":
$p$: It is necessary to have a password to log on to the server.

The dual of the statement pattern $(p \land \sim q) \to (q \land \sim p)$ is equivalent to

$p$: If $7$ is an odd number,then $7$ is divisible by $2$.
$q$: If $7$ is a prime number,then $7$ is an odd number.
If $V_1$ and $V_2$ are the respective truth values of the contrapositive of $p$ and $q$,then $(V_1, V_2) \equiv$

The proposition $p \rightarrow \sim( p \wedge \sim q )$ is equivalent to

The negation of the logical statement $(p \vee \sim q) \rightarrow (p \wedge \sim q)$ is

The statement $(p \wedge (\sim q)) \vee ((\sim p) \wedge q) \vee ((\sim p) \wedge (\sim q))$ is equivalent to