\documentclass[preview,border=1pt]{standalone}
\usepackage{amsmath,amssymb,amsthm}


\begin{document}
\[
\{(x,y)\in\mathbb{R}^2 \mid (x-y)(f(x,y)(x+g(x-y,s))-2s)<3s \ \forall\ s\in[\int_0^1e^{-t^2}dt, \frac{5}{2}]\}
\]
\end{document}