\documentclass[compress, 10pt, german, t]{beamer}

\usepackage[ngerman]{babel}
\uselanguage{German}
\languagepath{German}

\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}

\usepackage{helvet}
\usepackage{microtype}

\usepackage{url}
\usepackage{listings}
\usepackage{xcolor}
\usepackage{tikz}
\usepackage{pgfplots}
\usetikzlibrary{automata}
\usetikzlibrary{calc}
\usetikzlibrary{shapes}
\usetikzlibrary{positioning}
\usetikzlibrary{chains}

\usepackage{mathdots}
\usepackage{mathtools}
\mathtoolsset{showonlyrefs}
\usepackage{csquotes}
\usepackage{wasysym}

\usepackage{beamerthemeLEA2}

\newcommand{\N}{\mathbb{N}}
\newcommand{\Z}{\mathbb{Z}}
\newcommand{\Q}{\mathbb{Q}}
\newcommand{\R}{\mathbb{R}}
\newcommand{\C}{\mathbb{C}}
\newcommand{\Prob}{\mathrm{P}}
\newcommand{\Oh}{\mathcal{O}}

\newcommand{\abs}[1]{\left\vert #1 \right\vert}
\newcommand{\powerset}[1]{\mathcal{P}\left( #1 \right)}
\newcommand{\setnot}[1]{\overline{#1}}
\newcommand{\setsymdiff}{\,\triangle\,}
\newcommand{\defeq}{\mathrel{\vcenter{\baselineskip0.5ex\lineskiplimit0pt\hbox{\scriptsize.}\hbox{\scriptsize.}}}=}