Scope (Logic)/Examples
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Examples of Scope in the context of Logic
Arbitrary Example $1$
Let $\circ$ be a binary logical connective in a compound statement $p \circ q$.
The scope of $\circ$ is $p$ and $q$.
Arbitrary Example $2$
Consider the statement:
- $\paren {p \land \paren {q \lor r} } \implies \paren {s \iff \neg \, t}$
We have:
- $(1): \quad$ The scope of $\land$ is $p$ and $\paren {q \lor r}$.
- $(2): \quad$ The scope of $\lor$ is $q$ and $r$.
- $(3): \quad$ The scope of $\implies$ is $\paren {p \land \paren {q \lor r} }$ and $\paren {s \iff \neg \, t}$.
- $(4): \quad$ The scope of $\iff$ is $s$ and $\neg \, t$.
- $(5): \quad$ The scope of $\neg$ is $t$.
Arbitrary Example $3$
Consider the statement:
- $\exists x: \paren {x < y} \lor y = 0$
We have:
- $(1): \quad$ The scope of $\exists$ is $x$.
- $(2): \quad$ The scope of $\exists x$ is $\exists x: \paren {x < y}$.
- $(3): \quad$ The scope of $=$ is $y$ and $0$.
- $(4): \quad$ The scope of $\lor$ is $\exists x: \paren {x < y}$ and $y = 0$.
Scope (Logic)/Connective
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