- a quantifier indicating that the sentential function within its scope is true for at least one value of the variable included in the quantifier.
Compare universal quantifier.
Origin of existential quantifier
First recorded in 1935–40
Also called particular quantifier.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- logic a formal device, for which the conventional symbol is ∃, which indicates that the open sentence that follows is true of at least one member of the relevant universe of interpretation, as (∃ x) Fx meaning "something is (an) F," "something Fs," or "there are (some) Fs."
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