If the inverse of the conditional statement $p \to \left( { \sim q\ \wedge \sim r} \right)$ is false, then the respective truth values of the statements $p, q$ and $r$ is
$FFF$
$TFT$
$TTF$
$TTT$
Statement $\left( {p \wedge q} \right) \to \left( {p \vee q} \right)$ is
If $p$ and $q$ are simple propositions, then $p \Rightarrow q$ is false when
The contrapositive of the statement "if I am not feeling well, then I will go to the doctor" is
The negation of the Boolean expression $x \leftrightarrow \sim y$ is equivalent to
When does the current flow through the following circuit