# Benutzer:Bocardodarapti/Versuche/Test7

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${\displaystyle \operatorname {Vol} ({\mathfrak {N}})}$ ${\displaystyle \,\geq \,}$ ${\displaystyle \operatorname {Vol} (X\cup Y\cup B)}$ ${\displaystyle \,=\,}$ ${\displaystyle \operatorname {Vol} (\bigcup _{i\in I}{\tilde {T_{i}}})+\operatorname {Vol} (B)}$ ${\displaystyle \,>\,}$ ${\displaystyle \sum _{i\in I}\operatorname {Vol} ({\tilde {T}}_{i})}$ ${\displaystyle \,=\,}$ ${\displaystyle \sum _{i\in I}\operatorname {Vol} (T_{i})}$ ${\displaystyle \,=\,}$ ${\displaystyle \operatorname {Vol} (T)}$ ${\displaystyle \,\geq \,}$ ${\displaystyle 2^{n}\operatorname {Vol} ({\mathfrak {M}})}$ ${\displaystyle \,=\,}$ ${\displaystyle \operatorname {Vol} ({\mathfrak {N}})\,.}$