# n-place predicate

- A predicate thought of as an open sentence that requires n variables to be either bound or substituted by a referring expression to make a closed sentence. Thus ‘
*x*is the daughter of*y*’ is a two-place predicate, that can be turned into a sentence either by substitution of names: Mary is the daughter of Emma; or by a name and a quantification binding one variable: (∃*x*) Mary is the daughter of*x*; or by binding both variables: (∃*x*)(∃*y*)*x*is the daughter of*y*.

*Philosophy dictionary.
Academic.
2011.*

### Look at other dictionaries:

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