existential causative effected object existential operator operator existential presupposition presupposition existential proposition

Proposition about at least one element (individual, state of affairs, etc.) of a particular range in contrast with universal propositions that refer to all elements of a particular range. Existential propositions are represented in formal logic with the aid of the socalled existential quantifier ( operator): , read as: ‘There is at least one x for which it is true that x has the property A’ (e.g. ‘being a doctor’).