The statement $p \to ( q \to p)$ is equivalent to

Which of the following is true

Negation of the Boolean expression $p \Leftrightarrow( q \Rightarrow p )$ is.

The negation of the Boolean expression $p \vee(\sim p \wedge q )$ is equivalent to

Let $p, q, r$ denote arbitrary statements. Then the logically equivalent of the statement $p\Rightarrow (q\vee r)$ is

The negation of $ \sim s \vee \left( { \sim r \wedge s} \right)$ is equivalent to :