open sentence

American  

noun

1. 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.

2. Logic. a propositional function that contains a free variable, as “ x is a man.”

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open sentence British  

noun

1. Also called: propositional function.   sentential function.  logic an expression containing a free variable that can be replaced by a name to yield a sentence, as x is wise

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Etymology

Origin of open sentence

First recorded in 1935–40

Example Sentences

Then with great admiration the lotte in ball first taken out was mine: which was by open sentence so pronounced before all the people, and to be the right and true parte.

From The Principal Navigations, Voyages, Traffiques and Discoveries of the English Nation — Volume 03 by Hakluyt, Richard