existential quantifier

noun Logic.
  1. a quantifier indicating that the sentential function within its scope is true for at least one value of the variable included in the quantifier.

Origin of existential quantifier

First recorded in 1935–40
Also called particular quantifier.
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British Dictionary definitions for existential quantifier

existential quantifier

noun
  1. 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."
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