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Being, or existence, is the main topic of ontology. It is one of the most general and fundamental concepts, encompassing all of reality and every entity within it. [b] In its broadest sense, being only contrasts with non-being or nothingness. [14] It is controversial whether a more substantial analysis of the concept or meaning of being is ...
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.
Metaphysicians often regard existence or being as one of the most basic and general concepts. [26] To exist means to be part of reality, distinguishing real entities from imaginary ones. [27] According to a traditionally influential view, existence is a property of properties: if an entity exists then its properties are instantiated. [28]
Philosophy addresses two different aspects of the topic of reality: the nature of reality itself, and the relationship between the mind (as well as language and culture) and reality. On the one hand, ontology is the study of being, and the central topic of the field is couched, variously, in terms of being, existence, "what is", and reality.
Herbert Marcuse criticized Being and Nothingness for projecting anxiety and meaninglessness onto the nature of existence itself: "Insofar as Existentialism is a philosophical doctrine, it remains an idealistic doctrine: it hypostatizes specific historical conditions of human existence into ontological and metaphysical characteristics ...
Branch of philosophy – philosophy is the study of general and fundamental problems, such as those connected with existence, knowledge, values, reason, mind, and language. [4] [5] Philosophy is distinguished from other ways of addressing such problems by its critical, generally systematic approach and its reliance on rational argument. [6]
In German, Dasein is the vernacular term for "existence". It is derived from da-sein, which literally means "being-there" or "there-being". [3] In a philosophical context, it was first used by Leibniz and Wolff in the 17th century, as well as by Kant and Hegel in the 18th and 19th; however, Heidegger's later association of the word with human existence was uncommon and not of special ...
The central concept of Platonism, a distinction essential to the Theory of Forms, is the distinction between the reality which is perceptible but unintelligible, associated with the flux of Heraclitus and studied by the likes of science, and the reality which is imperceptible but intelligible, associated with the unchanging being of Parmenides ...