Definition:Occurrence (Formal Systems)

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This page is about Occurrence in the context of formal systems. For other uses, see Occurrence.


Let $\FF$ be a formal language.

Let $S, T$ be collations in the alphabet of $\FF$.

Each place where $S$ appears in $T$ is called an occurrence of $S$ in $T$.

Also known as

Some sources refer to this as an instance.