}^{x} \left(\int_{z=0}^{y}F\downharpoonright_{A_{yzx}}+\int_{z=y}^{x}F\downharpoonright_{A_{zyx}}+\int_{z=x}^{0-{\varepsilon}-x}F\downharpoonright_{A_{xyz}} +\int_{z=0-{\varepsilon}-x}^{0-{\varepsilon}-y}F\downharpoonright_{B_{xyz}}\right. \\ &\quad \left. +\int_{z=0-{\varepsilon}-y}^{0/0-x-y}F\downharpoonright_{C_{xyz}}\ dz \right)^{0}\ dy\ dx.\end{aligned}$$ 