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noun

Mathematics. an equation or inequality containing one or more variables in which its truth or falsehood depends upon the values assumed by the variables in a particular instance, as the equation x + 3 = 8.
Logic. a propositional function that contains a free variable, as “ x is a man.”

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logic an expression containing a free variable that can be replaced by a name to yield a sentence, as x is wise Also calledpropositional functionsentential function

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First recorded in 1935–40

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