User:Xiachenfeng

$$\neg\exists~Q\ne\empty\sube\left\{\plusmn\tfrac{1}{5}\right\}\cup\mathbb{N}:\ \sum_{q\isin Q}\lim_{z\rightarrow\infty}\dfrac{2^q\times\sqrt[3]{\pi}}{\textstyle\int\limits_{y=\alpha''}^\omega \partial_x f(\bar z)\cdot dy}\not\equiv 0$$