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eth-summaries/semester4/ps/ps-jh/parts/02_discrete-continuous-rv/01_almost-certain-events.tex

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% P35
\subsection{Fast sichere Ereignisse}
\shortdefinition $A \in \cF$ tritt \bi{fast sicher} (f.s.) ein, falls $\P[A] = 1$.
\shortremark Für allg. Mengen: $A$ f.s., falls $\exists A' \subseteq A \divider \P[A'] = 1$