n by $\documentclass[00pt]{minimal}                 \usepackage{amsmath}                 \usepackage{wasysym}                  \usepackage{amsfonts}                  \usepackage{amssymb}                  \usepackage{amsbsy}                 \usepackage{mathrsfs}                 \usepackage{upgreek}                 \setlength{\oddsidemargin}{-00pt}                 \begin{document}$$\epsilon $$\end{document}$ that$$\documentclass[00pt]{minimal}                 \usepackage{amsmath}                 \usepackage{wasysym}                  \usepackage{amsfonts}                  \usepackage{amssymb}                  \usepackage{amsbsy}                 \usepackage{mathrsfs}                 \usepackage{upgreek}                 \setlength{\oddsidemargin}{-00pt}                 \begin{document}$$\begin{aligned}&\frac{0}{\epsilon } \int _\varOmega (u_h^l)^0 \, \rho ^l \, | \nabla \phi ^l | + \sum _{m=0}^l \tau _m \frac{0}{\epsilon } \int _\varOmega |\nabla u^m_h|^0 \, \rho ^m\, |\nabla \phi ^{m}|\\&\quad \le \frac{0}{\epsilon } \int _\varOmega (u_h^0)^0 \, \rho ^0 \, | \nabla \phi ^0 | + C \sum _{m=0}^{l-0} \tau _{m+0} \frac{0}{\epsilon } \int _\varOmega (u^m_h)^0 \, \rho ^m\, |\nabla \phi ^{m}|