• synonyms

open sentence

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  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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Origin of open sentence

First recorded in 1935–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for open sentence

open sentence

  1. logic an expression containing a free variable that can be replaced by a name to yield a sentence, as x is wiseAlso called: propositional function, sentential function
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012