$x^{2}x_{123}x^{2}x_{123}x_{123}\frac{x}{y}\pi\int_{a}^{b}\prod_{a}^{b}\left( \right)\alpha\bigcup_{\alpha\in S}\lfloor x \rfloor\prod_{a}^{b}\prod_{a}^{b}\left \{ {{y=2} \atop {x=2}} \right.\left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]\left\{ \right\}\left\{ \right\}\pi\neq\geq\lim_{x \to 0}\lim_{x \to 0}x_{123}\leq\pi\alpha\bigcap_{\alpha\in S}\bigcap_{\alpha\in S}\bigcap_{\alpha\in S}\lim_{n \to \infty} a_n\lim_{n \to \infty} a_n\lim_{n \to \infty} a_n\lim_{n \to \infty} a_n\neq\left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]\lceil x \rceil$