sentential function

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A predicate may be thought of as a function from a single term to a sentence, and hence can be called a sentential function. Also, the truth-functional connectives are occasionally thought of as functions from sentences to sentences, although they are better thought of as functions from sets of truth values to other truth values, since this is how they are evaluated in interpretations of the propositional calculus. See also propositional function.

Subjects: Philosophy.

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