a quantifier indicating that the sentential function within its scope is true for at least one value of the variable included in the quantifier.
- Also called particular quantifier.
- Compare universal quantifier.
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British Dictionary definitions for existential quantifier
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