Reorganisation
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Band1/B1.031.tex
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45
Band1/B1.031.tex
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%!TEX root=Band1.tex
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\phantomsection
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\label{B1.31}
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\liRa{31}
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Kommen wir nun zu Beispielen für den Gebrauch der Wörter \anf{und}, \anf{oder} in mathematischen Aussagen.
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Es seien $a, b$ rationale Zahlen, und es sei $a \cdot b=0$.
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\begin{addmargin}[40pt]{0pt}
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\textbf{Frage}: Welche Aussage ist dann bei jeder Wahl von $a, b$ wahr?
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\end{addmargin}
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\begin{tikzpicture}[anchor=west]
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%Vorfüllen sonst verrutscht es
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\draw [white](0,0) -- (6,0);
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\node (A) at (1.25,0) { \textbf{Antwort}: Entweder $a=0$ oder $b=0$};
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\bglayer{%
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\draw [line width= 0.35mm, -Latex] (9,0) -- (11.25,0) node [right] {\hyperref[B1.40]{40}};
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}
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\end{tikzpicture}
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\vspace{-2mm}
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\begin{tikzpicture}[anchor=west]
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%Vorfüllen sonst verrutscht es
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\draw [white](0,0) -- (6,0);
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\node (A) at (2.9,0) { $a=0$ oder $b=0$};
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\bglayer{%
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\draw [line width= 0.35mm, -Latex] (9,0) -- (11.25,0) node [right] {\hyperref[B1.28]{28}};
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}
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\end{tikzpicture}
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\vspace{-2mm}
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\begin{tikzpicture}[anchor=west]
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%Vorfüllen sonst verrutscht es
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\draw [white](0,0) -- (6,0);
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\node (A) at (2.9,0) { $a=0$ und $b=0$};
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\bglayer{%
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\draw [line width= 0.35mm, -Latex] (9,0) -- (11.25,0) node [right] {\hyperref[B1.34]{34}};
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}
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\end{tikzpicture}
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