bound variable
1. A bound variable or formal argument in a function definition is replaced by
the actual argument when the function is applied. In the lambda abstraction
\ x . M
x is the bound variable. However, x is a free variable of the term M when
M is considered on its own. M is the scope of the
binding of x.
2. In logic a bound variable is a quantified variable. See quantifier.
Nearby terms:
boundary value analysis « bounded « boundedly
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