open-sentence

open sentence

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.”

Origin:
1935–40

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
open sentence
 
n
logic propositional function, Also called: sentential function an expression containing a free variable that can be replaced by a name to yield a sentence, as x is wise

Collins English Dictionary - Complete & Unabridged 10th Edition
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