TeX Quellcode:

\begin{array}{rrclcl}\text{9. Zeile:} & u_1 = 10^t &=& -6 &\vert& \lg() \\\\\text{10. Zeile:} & t_1 &=& \lg\left(-6\right) \\\\\text{11. Zeile:} & u_2 = 10^t &=& \dfrac{1}{2} &\vert& \lg() \\\text{12. Zeile:} & t_2 &=& \lg\left(\dfrac{1}{2}\right) \\\\& \mathbb{L} &=& \left\{\lg\left(\dfrac{1}{2}\right)\right\}\end{array}