$(notxvvy{)}^{{?}^{?}}(xvvz{)}^{{?}^{?}}(yvvnotz)$ is a $3$CNF formula. are atoms.$)$

It is decidable whether two formulae in propositional logic are logically equiv$-$

alent with each other.

Assume, that $g(n)=(f(n))$ holds for functions $f,g$:$N{R}_0^{+}.$ Then $f(n)=$

$O(g(n)).$

Let $M=($:$Q,,,,q_0,q_a,q_r$:$)$ be a one tape nondeterministic Turing machine.

If $q_{0}u|--C_1$ holds for some uin${}^{+}$and we have $C_i|--C_{i+1}$ for all natural

numbers $i1,$ then $u!$inL$(M).$

If $A$ is a proper subset of $B,$ then the cardinality of $B$ is greater than the

cardinality of $A.$

$\{\begin{array}{ccc}\text{L}\text{s}\text{u}\text{b}\text{e}& \{0,& 1{\}}^{**}|L\end{array}$ is NP$-$complete