Question $6$

Which of the answers below are true for the following:

$((PLongrightarrownotR{)}^{{?}^{?}}Q)Longleftrightarrow(Q^{{?}^{?}}$not$(notPvvnotR))?$

You may select more than one answer.

The statement is false for all possible values for $P,Q$ and $R.$

The part of the biconditional consisting of the right side implying the left is true for all possible valu for $P,Q$ and $R.$

The statement is false for some possible values of $P,Q$ and $R$ but not all.

The statement is true for all possible values of $P,Q$ and $R.$

The statement is true when $P=T",Q="$T$",R="$T$".$

The statement is a logical equivalence.

None of the given answers are true.

The statement is a contradiction.