Search Result for "existential quantifier":
Wordnet 3.0

NOUN (1)

1. a logical quantifier of a proposition that asserts the existence of at least one thing for which the proposition is true;
[syn: existential quantifier, existential operator]


WordNet (r) 3.0 (2006):

existential quantifier n 1: a logical quantifier of a proposition that asserts the existence of at least one thing for which the proposition is true [syn: existential quantifier, existential operator]
The Free On-line Dictionary of Computing (30 December 2018):

quantifier existential quantifier universal quantifier An operator in predicate logic specifying for which values of a variable a formula is true. Universally quantified means "for all values" (written with an inverted A, LaTeX \forall) and existentially quantified means "there exists some value" (written with a reversed E, LaTeX \exists). To be unambiguous, the set to which the values of the variable belong should be specified, though this is often omitted when it is clear from the context (the "universe of discourse"). E.g. Forall x . P(x) <=> not (Exists x . not P(x)) meaning that any x (in some unspecified set) has property P which is equivalent to saying that there does not exist any x which does not have the property. If a variable is not quantified then it is a free variable. In logic programming this usually means that it is actually universally quantified. See also first order logic. (2002-05-21)