predicate

中文： 谓语、述语

1. The part of the sentence (or clause) which states a property that a subject has or is characterized by.
2. A term of a statement, where the statement may be true or false depending on whether the thing referred to by the values of the statement's variables has the property signified by that (predicative) term. · A propositional variable may be treated as a nullary predicate.· A predicate is either valid, satisfiable, or unsatisfiable.
3. An operator, expression, or function that returns either true or false.

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