Write the negation of the following statement:
All triangles are not equilateral triangles.

Write the negation of the following statement and check whether the resulting statement is true:
Australia is a continent.

If $p$ and $q$ are true statements and $r$ is a false statement,then which of the following is correct?

The false statement in the following is

If $(p \wedge \sim q) \wedge r \to \sim r$ is $F$,then the truth value of $r$ is:

Among the statements:
$(S1) \quad (( p \vee q )$ $\Rightarrow r ) \Leftrightarrow ( p$ $\Rightarrow r )$
$(S2) \quad (( p \vee q )$ $\Rightarrow r ) \Leftrightarrow (( p$ $\Rightarrow r ) \vee ( q$ $\Rightarrow r ))$