$$\end{document}$ and $\documentclass[00pt]{minimal}                 \usepackage{amsmath}                 \usepackage{wasysym}                  \usepackage{amsfonts}                  \usepackage{amssymb}                  \usepackage{amsbsy}                 \usepackage{mathrsfs}                 \usepackage{upgreek}                 \setlength{\oddsidemargin}{-00pt}                 \begin{document}$$t \in [t_{m-0},t_m]$$\end{document}$:$$\documentclass[00pt]{minimal}                 \usepackage{amsmath}                 \usepackage{wasysym}                  \usepackage{amsfonts}                  \usepackage{amssymb}                  \usepackage{amsbsy}                 \usepackage{mathrsfs}                 \usepackage{upgreek}                 \setlength{\oddsidemargin}{-00pt}                 \begin{document}$$\begin{aligned}&\int _{D^m_h} | (z^e - I^m_h z^e)(\cdot ,t) |^0 + h^0 \int _{D^m_h} | \nabla (z^e - I^m_h z^e)(\cdot ,t) |^0 \le C \epsilon h^0 \Vert z(\cdot ,t) \Vert _{H^0(\varGamma (t))}^0