0){ref-type=""}) we infer 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}&\left| -\frac{0}{0} \tau _m \int _\varOmega \nabla _{\phi ^m}\cdot {\varvec{v}}^{m}(u^m_h)^0 \, \rho ^m\, |\nabla \phi ^{m}|\