Definition:Scope of Occurrence
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Let $\mathbf A$ be a well-formed formula of $\FF$.
Let $a$ be a fixed occurrence of some element of $\AA$ in $\mathbf A$.
Then the scope of $a$ is the smallest well-formed part of $\mathbf A$ that contains $a$.
- Definition:Scope (Logic), highlighting two of the most common usages of scopes