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In some languages, linguistic possession (in a broad sense) is indicated by existential clauses, rather than by a verb like have. For example, in Russian, "I have a friend" can be expressed by the sentence у меня есть друг u menya yest' drug, literally "at me there is a friend".
Looking at existential sentences, in all languages, they are understood to belong to a grammatically distinct construction, which is utilized to express existential positions. Cleft-sentences in English contain existential sentences that have a dummy there as a subject, be as a main verb, and an NP in the post-verbal complement position.
In predicate logic, an existential quantification is a type of quantifier, a logical constant which is interpreted as "there exists", "there is at least one", or "for some". It is usually denoted by the logical operator symbol ∃, which, when used together with a predicate variable, is called an existential quantifier (" ∃ x " or " ∃( x ...
Existential generalization / instantiation In predicate logic , existential generalization [ 1 ] [ 2 ] (also known as existential introduction , ∃I ) is a valid rule of inference that allows one to move from a specific statement, or one instance, to a quantified generalized statement, or existential proposition .
Willard Van Orman Quine provided an early and influential formulation of ontological commitment: [4]. If one affirms a statement using a name or other singular term, or an initial phrase of 'existential quantification', like 'There are some so-and-sos', then one must either (1) admit that one is committed to the existence of things answering to the singular term or satisfying the descriptions ...
On this reading, "no" decomposes into a negation scoping above "need" and an existential quantifier scoping below it. [3] Indefinites have been argued to have split scope, having separate existential scope and distributive scope. This fact can be seen in the following example: [4] [5] [6] If three relatives of mine die, I will inherit a house.
Meaning is not given, and must be achieved. With objects—say, a knife, for example—there is some creator who conceives of an idea or purpose of an object, and then creates it with the essence of the object already present. The essence of what the knife will be exists before the actual knife itself.
The existential quantifier ∃ is often used in logic to express existence.. Existence is the state of having being or reality in contrast to nonexistence and nonbeing.Existence is often contrasted with essence: the essence of an entity is its essential features or qualities, which can be understood even if one does not know whether the entity exists.