Nothing
Encyclopedia
Nothing is no thing
Thing
- Philosophy :* An object , being, or entity* Thing-in-itself , the reality that underlies perceptions, a term coined by Immanuel Kant- History :...

, denoting the absence of something
Existential quantification
In predicate logic, an existential quantification is the predication of a property or relation to at least one member of the domain. It is denoted by the logical operator symbol ∃ , which is called the existential quantifier...

. Nothing is a pronoun associated with nothingness, is also an adjective
Adjective
In grammar, an adjective is a 'describing' word; the main syntactic role of which is to qualify a noun or noun phrase, giving more information about the object signified....

, and an object
Object
Object may refer to:* Object , a thing, being or concept** Entity, something that is tangible and within the grasp of the senses* As used in object relations theories of psychoanalysis, that to which a subject relates....

 as a concept
Concept
The word concept is used in ordinary language as well as in almost all academic disciplines. Particularly in philosophy, psychology and cognitive sciences the term is much used and much discussed. WordNet defines concept: "conception, construct ". However, the meaning of the term concept is much...

 in the Frege-Church ontology.

In nontechnical uses, nothing denotes things lacking importance, interest, value, relevance, or significance. Nothingness is the state of being nothing, the state of nonexistence of anything, or the property of having nothing.

Western philosophy

Some would consider the study of "nothing" to be foolish, a typical response of this type is voiced by Giacomo Casanova
Giacomo Casanova
Giacomo Girolamo Casanova de Seingalt was an Italian adventurer and author from the Republic of Venice. His autobiography, Histoire de ma vie , is regarded as one of the most authentic sources of the customs and norms of European social life during the 18th century...

 (1725–1798) in conversation with his landlord, one Dr. Gozzi, who also happens to be a priest,
However, "nothingness" has been treated as a serious subject worthy of research for a very long time. In philosophy, to avoid linguistic traps over the meaning of "nothing", a phrase such as not-being is often employed to unambiguously make clear what is being discussed.

Parmenides

One of the earliest western philosophers to consider nothing as a concept was Parmenides
Parmenides
Parmenides of Elea was an ancient Greek philosopher born in Elea, a Greek city on the southern coast of Italy. He was the founder of the Eleatic school of philosophy. The single known work of Parmenides is a poem, On Nature, which has survived only in fragmentary form. In this poem, Parmenides...

 (5th century BC) who was a Greek philosopher of the monist school. He argued that "nothing" cannot exist by the following line of reasoning. To speak of a thing, one has to speak of a thing that exists. Since we can speak of a thing in the past, it must still exist (in some sense) now and from this concludes that there is no such thing as change. As a corollary, there can be no such things as coming-into-being, passing-out-of-being or not-being.

Despite the fact of existence stubbornly refuting Parmenides' conclusion, he was taken seriously by other philosophers, influencing, for instance, Socrates
Socrates
Socrates was a classical Greek Athenian philosopher. Credited as one of the founders of Western philosophy, he is an enigmatic figure known chiefly through the accounts of later classical writers, especially the writings of his students Plato and Xenophon, and the plays of his contemporary ...

 and Plato
Plato
Plato , was a Classical Greek philosopher, mathematician, student of Socrates, writer of philosophical dialogues, and founder of the Academy in Athens, the first institution of higher learning in the Western world. Along with his mentor, Socrates, and his student, Aristotle, Plato helped to lay the...

. Aristotle too, gives Parmenides serious consideration but concludes; "Although these opinions seem to follow logically in a dialectical discussion, yet to believe them seems next door to madness when one considers the facts."

Leucippus

Leucippus
Leucippus
Leucippus or Leukippos was one of the earliest Greeks to develop the theory of atomism — the idea that everything is composed entirely of various imperishable, indivisible elements called atoms — which was elaborated in greater detail by his pupil and successor, Democritus...

 (early 5th century BC), one of the atomists, along with other philosophers of his time, made attempts to reconcile this with the everyday observation of motion and change. He accepted the monist position that there could be no motion without a void. The void is the opposite of being, it is not-being. On the other hand, a thing that exists is an absolute plenum and there can be no motion in a plenum because it is completely full. But there is not one monolithic plenum, existence consists of a multiplicity of plenums. These are the invisibly small atoms of the atomists theory, later expanded more fully by Democritus
Democritus
Democritus was an Ancient Greek philosopher born in Abdera, Thrace, Greece. He was an influential pre-Socratic philosopher and pupil of Leucippus, who formulated an atomic theory for the cosmos....

 (circa 460 BC – 370 BC). They are a necessary part of the theory in order to allow the void to exist between them. In this scenario macroscopic objects can come-into-being move through space and pass into not-being by means of the coming together and moving apart of their constituent atoms. The void must exist in order to allow this to happen or else the frozen world of Parmenides must be accepted.

Bertrand Russell
Bertrand Russell
Bertrand Arthur William Russell, 3rd Earl Russell, OM, FRS was a British philosopher, logician, mathematician, historian, and social critic. At various points in his life he considered himself a liberal, a socialist, and a pacifist, but he also admitted that he had never been any of these things...

 points out that this does not exactly defeat the argument of Parmenides, but rather ignores it by taking the rather modern scientific position of starting with the observed data (motion etc.) and constructing a theory based on the data as opposed to Parmenides attempts to work from pure logic. Russell also observes that both sides were mistaken in believing that there can be no motion in a plenum, but arguably motion cannot start in a plenum. Cyril Bailey notes that Leucippus is the first to say that a thing (the void) might be real without being a body and points out the irony that this comes from a materialistic atomist. Leucippus is therefore the first to say that "nothing" has a reality attached to it.

Aristotle

Aristotle
Aristotle
Aristotle was a Greek philosopher and polymath, a student of Plato and teacher of Alexander the Great. His writings cover many subjects, including physics, metaphysics, poetry, theater, music, logic, rhetoric, linguistics, politics, government, ethics, biology, and zoology...

 (384–322 BC) provided the classic escape from the logical problem posed by Parmenides by distinguishing things that are matter and things that are space. In this scenario, space is not "nothing", but a receptacle in which objects of matter can be placed. The void (as "nothing") is different from space and is removed from consideration.

This characterisation of space reached its pinnacle with Isaac Newton
Isaac Newton
Sir Isaac Newton PRS was an English physicist, mathematician, astronomer, natural philosopher, alchemist, and theologian, who has been "considered by many to be the greatest and most influential scientist who ever lived."...

 who asserted the existence of absolute space. Interestingly, modern quantum theory
Quantum mechanics
Quantum mechanics, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particle-like and wave-like behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic...

 agrees that space is not the void, there is the concept of quantum foam
Quantum foam
Quantum foam, also referred to as spacetime foam, is a concept in quantum mechanics, devised by John Wheeler in 1955. The foam is supposed to be the foundations of the fabric of the universe. Additionally, it can be used as a qualitative description of subatomic spacetime turbulence at extremely...

 which still exists in the absence of all else, although Albert Einstein
Albert Einstein
Albert Einstein was a German-born theoretical physicist who developed the theory of general relativity, effecting a revolution in physics. For this achievement, Einstein is often regarded as the father of modern physics and one of the most prolific intellects in human history...

's general relativity
General relativity
General relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics...

 no longer agrees with Newton's concept of an absolute space. René Descartes
René Descartes
René Descartes ; was a French philosopher and writer who spent most of his adult life in the Dutch Republic. He has been dubbed the 'Father of Modern Philosophy', and much subsequent Western philosophy is a response to his writings, which are studied closely to this day...

, on the other hand, returned to a Parmenides-like argument of denying the existence of space. For Descartes, there was matter, and there was extension of matter leaving no room for the existence of "nothing".

The idea that space can actually be empty was generally still not accepted by philosophers who invoked arguments similar to the plenum reasoning. Although Descartes views on this were challenged by Blaise Pascal
Blaise Pascal
Blaise Pascal , was a French mathematician, physicist, inventor, writer and Catholic philosopher. He was a child prodigy who was educated by his father, a tax collector in Rouen...

, he declined to overturn the traditional belief, commonly stated in the form "Nature abhors a vacuum". This remained so until Evangelista Torricelli
Evangelista Torricelli
Evangelista Torricelli was an Italian physicist and mathematician, best known for his invention of the barometer.-Biography:Evangelista Torricelli was born in Faenza, part of the Papal States...

 invented the barometer in 1643 and showed that an empty space appeared if the mercury tube was turned upside down. This phenomenon being known as the Torricelli vacuum and the unit of vacuum pressure, the torr
Torr
The torr is a non-SI unit of pressure with the ratio of 760 to 1 standard atmosphere, chosen to be roughly equal to the fluid pressure exerted by a millimetre of mercury, i.e., a pressure of 1 torr is approximately equal to 1 mmHg...

, being named after him. Even Torricelli's teacher, the famous Galileo Galilei
Galileo Galilei
Galileo Galilei , was an Italian physicist, mathematician, astronomer, and philosopher who played a major role in the Scientific Revolution. His achievements include improvements to the telescope and consequent astronomical observations and support for Copernicanism...

 had previously been unable to adequately explain the sucking action of a pump.

John the Scot

John the Scot, or Johannes Scotus Eriugena
Johannes Scotus Eriugena
Johannes Scotus Eriugena was an Irish theologian, Neoplatonist philosopher, and poet. He is known for having translated and made commentaries upon the work of Pseudo-Dionysius.-Name:...

 (c. 815–877) held many surprisingly heretical beliefs for the time he lived in for which no action appears ever to have been taken against him. His ideas mostly stem from, or are based on his work of translating pseudo-Dionysius. His beliefs are essentially pantheist and he classifies evil, amongst many other things, into not-being. This is done on the grounds that evil is the opposite of good, a quality of God, but God can have no opposite, since God is everything in the pantheist view of the world. Similarly, the idea that God created the world out of "nothing" is to be interpreted as the "nothing" here is synonymous with God.

G. W. F. Hegel

Georg Wilhelm Friedrich Hegel
Georg Wilhelm Friedrich Hegel
Georg Wilhelm Friedrich Hegel was a German philosopher, one of the creators of German Idealism. His historicist and idealist account of reality as a whole revolutionized European philosophy and was an important precursor to Continental philosophy and Marxism.Hegel developed a comprehensive...

 (1770–1831) is the philosopher who brought the dialectic
Dialectic
Dialectic is a method of argument for resolving disagreement that has been central to Indic and European philosophy since antiquity. The word dialectic originated in Ancient Greece, and was made popular by Plato in the Socratic dialogues...

al method to its pinnacle of development. According to Hegel in Science of Logic
Science of Logic
Hegel's work The Science of Logic outlined his vision of logic, which is an ontology that incorporates the traditional Aristotelian syllogism as a sub-component rather than a basis...

the dialectical methods consists of three steps. First, a thesis is given, which can be any postulate in logic
Logic
In philosophy, Logic is the formal systematic study of the principles of valid inference and correct reasoning. Logic is used in most intellectual activities, but is studied primarily in the disciplines of philosophy, mathematics, semantics, and computer science...

. Second, the antithesis of the thesis is formed and finally a synthesis incorporating both thesis and antithesis. Hegel believed that no postulate taken by itself can be completely true. Only the whole can be true and the dialectical synthesis was the means by which the whole could be examined in relation to a specific postulate. Truth consists of the whole process, separating out thesis, antithesis or synthesis as a stand-alone statement results in something that is in some way or other untrue. The concept of "nothing" arises in Hegel right at the beginning of his Logic. The whole is called by Hegel the "Absolute" and is to be viewed as something spiritual. Hegel then has;
  • Thesis
    Thesis
    A dissertation or thesis is a document submitted in support of candidature for an academic degree or professional qualification presenting the author's research and findings...

    : The Absolute is Pure Being
  • Antithesis
    Antithesis
    Antithesis is a counter-proposition and denotes a direct contrast to the original proposition...

    : The Absolute is Nothing
  • Synthesis
    Thesis, antithesis, synthesis
    The triad thesis, antithesis, synthesis is often used to describe the thought of German philosopher Georg Wilhelm Friedrich Hegel. Hegel never used the term himself, and almost all of his biographers have been eager to discredit it....

    : The Absolute is Becoming

Existentialists

The most prominent figure among the existentialists
Existentialism
Existentialism is a term applied to a school of 19th- and 20th-century philosophers who, despite profound doctrinal differences, shared the belief that philosophical thinking begins with the human subject—not merely the thinking subject, but the acting, feeling, living human individual...

 is Jean-Paul Sartre
Jean-Paul Sartre
Jean-Paul Charles Aymard Sartre was a French existentialist philosopher, playwright, novelist, screenwriter, political activist, biographer, and literary critic. He was one of the leading figures in 20th century French philosophy, particularly Marxism, and was one of the key figures in literary...

 whose ideas in his book Being and Nothingness are heavily influenced by Being and Time
Being and Time
Being and Time is a book by the German philosopher Martin Heidegger. Although written quickly, and despite the fact that Heidegger never completed the project outlined in the introduction, it remains his most important work and has profoundly influenced 20th-century philosophy, particularly...

of Martin Heidegger
Martin Heidegger
Martin Heidegger was a German philosopher known for his existential and phenomenological explorations of the "question of Being."...

, although Heidegger later stated that he was misunderstood by Sartre. Sartre defines two kinds of "being" (être). One kind is être-en-soi, the brute existence of things such as a tree. The other kind is être-pour-soi which is consciousness. Sartre claims that this second kind of being is "nothing" since consciousness cannot be an object of consciousness and can possess no essence. Sartre, and even more so, Jaques Lacan, use this conception of nothing as the foundation of their atheist philosophy. Equating nothingness with being leads to creation from nothing and hence God is no longer needed for there to be existence.

Eastern philosophy

The understanding of 'nothing' varies widely between cultures, especially between Western and Eastern cultures and philosophical traditions. For instance, Śūnyatā (emptiness), unlike "nothingness", is considered to be a state of mind
Philosophy of mind
Philosophy of mind is a branch of philosophy that studies the nature of the mind, mental events, mental functions, mental properties, consciousness and their relationship to the physical body, particularly the brain. The mind-body problem, i.e...

 in some forms of Buddhism
Buddhism
Buddhism is a religion and philosophy encompassing a variety of traditions, beliefs and practices, largely based on teachings attributed to Siddhartha Gautama, commonly known as the Buddha . The Buddha lived and taught in the northeastern Indian subcontinent some time between the 6th and 4th...

 (see Nirvana
Nirvana
Nirvāṇa ; ) is a central concept in Indian religions. In sramanic thought, it is the state of being free from suffering. In Hindu philosophy, it is the union with the Supreme being through moksha...

, mu
Mu (negative)
or Wu , is a word which has been translated variously as "not", "nothing", "without", "nothingness", "non existent", "non being", or evocatively simply as "no thing"...

, and Bodhi
Bodhi
Bodhi is both a Pāli and Sanskrit word traditionally translated into English with the word "enlightenment", but which means awakened. In Buddhism it is the knowledge possessed by a Buddha into the nature of things...

). Achieving 'nothing' as a state of mind in this tradition allows one to be totally focused on a thought or activity at a level of intensity that they would not be able to achieve if they were consciously
Consciousness
Consciousness is a term that refers to the relationship between the mind and the world with which it interacts. It has been defined as: subjectivity, awareness, the ability to experience or to feel, wakefulness, having a sense of selfhood, and the executive control system of the mind...

 thinking. A classic example of this is an archer attempting to erase his mind and clear his thoughts in order to better focus on his shot. Some authors have pointed to similarities between the Buddhist conception of nothingness and the ideas of Martin Heidegger and existentialists like Sartre, although this connection has not been explicitly made by the philosophers themselves.

In some Eastern philosophies
Eastern philosophy
Eastern philosophy includes the various philosophies of Asia, including Chinese philosophy, Iranian philosophy, Japanese philosophy, Indian philosophy and Korean philosophy...

, the concept of "nothingness" is characterized by an egoless
Egolessness
In psychology, egolessness is an emotional state where one feels no ego ; of having no distinct being apart from the world around oneself...

 state of being in which one fully realizes one's own small part in the cosmos.

The Kyoto school
Kyoto School
The Kyoto School is the name given to the Japanese "philosophical movement centered at Kyoto University that assimilated western philosophy and religious ideas and used them to reformulate religious and moral insights unique to the East Asian cultural tradition." However, it is also used to...

 handles the concept of nothingness as well.

Language and logic

Alice: "I see nothing."
Cheshire Cat: "My. You have good eyes."

Grammatically, the word "nothing" is an indefinite pronoun
Indefinite pronoun
An indefinite pronoun is a pronoun that refers to one or more unspecified beings, objects, or places.-List of English indefinite pronouns:Note that many of these words can function as other parts of speech too, depending on context...

, which means that it refers to something. One might argue that "nothing" is a concept, and since concepts are things, the concept of "nothing" itself is a thing. This logical fallacy
Fallacy
In logic and rhetoric, a fallacy is usually an incorrect argumentation in reasoning resulting in a misconception or presumption. By accident or design, fallacies may exploit emotional triggers in the listener or interlocutor , or take advantage of social relationships between people...

 is neatly demonstrated by the joke syllogism
Syllogism
A syllogism is a kind of logical argument in which one proposition is inferred from two or more others of a certain form...

 that contains a fallacy of four terms
Fallacy of four terms
The fallacy of four terms is the logical fallacy that occurs when a syllogism has four terms rather than the requisite three. This form of argument is thus invalid.- Explanation :Categorical syllogisms always have three terms:...

:
  1. The Devil
    Devil
    The Devil is believed in many religions and cultures to be a powerful, supernatural entity that is the personification of evil and the enemy of God and humankind. The nature of the role varies greatly...

     is greater than nothing.
  2. Nothing is greater than God
    God
    God is the English name given to a singular being in theistic and deistic religions who is either the sole deity in monotheism, or a single deity in polytheism....

    .
  3. Therefore, the Devil is greater than God.


The four terms in this example are God, the Devil, nothing-as-a-thing that the Devil is greater than, and nothing as no-thing or not-some-thing (some thing is not greater than God). The error in the conclusion stems from equating nothing-as-a-thing with no-thing which is invalid logic.

Clauses can often be restated to avoid the appearance that "nothing" possesses an attribute. For example, the sentence "There is nothing in the basement" can be restated as "There is not one thing in the basement". "Nothing is missing" can be restated as "everything is present". Conversely, many fallacious conclusions follow from treating "nothing" as a noun.

Logician Alonzo Church
Alonzo Church
Alonzo Church was an American mathematician and logician who made major contributions to mathematical logic and the foundations of theoretical computer science. He is best known for the lambda calculus, Church–Turing thesis, Frege–Church ontology, and the Church–Rosser theorem.-Life:Alonzo Church...

 describes this as all names having both a concept
Concept
The word concept is used in ordinary language as well as in almost all academic disciplines. Particularly in philosophy, psychology and cognitive sciences the term is much used and much discussed. WordNet defines concept: "conception, construct ". However, the meaning of the term concept is much...

 or sense
Sense
Senses are physiological capacities of organisms that provide inputs for perception. The senses and their operation, classification, and theory are overlapping topics studied by a variety of fields, most notably neuroscience, cognitive psychology , and philosophy of perception...

, and a denotation
Denotation
This word has distinct meanings in other fields: see denotation . For the opposite of Denotation see Connotation.*In logic, linguistics and semiotics, the denotation of a word or phrase is a part of its meaning; however, the part referred to varies by context:** In grammar and literary theory, the...

. Church did not consider the name "nothingness", and its denotation.

Modern logic
Logic
In philosophy, Logic is the formal systematic study of the principles of valid inference and correct reasoning. Logic is used in most intellectual activities, but is studied primarily in the disciplines of philosophy, mathematics, semantics, and computer science...

 made it possible to articulate these points coherently as intended, and many philosophers hold that the word "nothing" does not function as a noun
Noun
In linguistics, a noun is a member of a large, open lexical category whose members can occur as the main word in the subject of a clause, the object of a verb, or the object of a preposition .Lexical categories are defined in terms of how their members combine with other kinds of...

, as there is no object to which it refers. There remain various opposing views, however—for example, that our understanding of the world rests essentially on noticing absences and lacks as well as presences, and that "nothing" and related words serve to indicate these.

Mathematics

The number zero is sometimes used to denote nothing. The empty set
Empty set
In mathematics, and more specifically set theory, the empty set is the unique set having no elements; its size or cardinality is zero. Some axiomatic set theories assure that the empty set exists by including an axiom of empty set; in other theories, its existence can be deduced...

 contains no elements.

Computing

In computing
Computing
Computing is usually defined as the activity of using and improving computer hardware and software. It is the computer-specific part of information technology...

, "nothing" can be a keyword
Keyword (computer programming)
In computer programming, a keyword is a word or identifier that has a particular meaning to the programming language. The meaning of keywords — and, indeed, the meaning of the notion of keyword — differs widely from language to language....

 (in VB.Net) used in place of something unassigned, a data abstraction. Although a computer's storage hardware always contains numbers, "nothing" symbolizes a number skipped by the system when the programmer desires. Many systems have similar capabilities but different keywords, such as "null", "NUL
Null character
The null character , abbreviated NUL, is a control character with the value zero.It is present in many character sets, including ISO/IEC 646 , the C0 control code, the Universal Character Set , and EBCDIC...

", "nil", and "None".

To instruct a computer processor
Central processing unit
The central processing unit is the portion of a computer system that carries out the instructions of a computer program, to perform the basic arithmetical, logical, and input/output operations of the system. The CPU plays a role somewhat analogous to the brain in the computer. The term has been in...

 to do nothing, a keyword such as "NOP
NOP
In computer science, NOP or NOOP is an assembly language instruction, sequence of programming language statements, or computer protocol command that effectively does nothing at all....

" may be available. This is a control abstraction; running processors are always computing something, if only the identity function
Identity function
In mathematics, an identity function, also called identity map or identity transformation, is a function that always returns the same value that was used as its argument...

.

Physics

In physics
Physics
Physics is a natural science that involves the study of matter and its motion through spacetime, along with related concepts such as energy and force. More broadly, it is the general analysis of nature, conducted in order to understand how the universe behaves.Physics is one of the oldest academic...

, the word nothing is not used in any technical sense. A region of space is called a vacuum
Vacuum
In everyday usage, vacuum is a volume of space that is essentially empty of matter, such that its gaseous pressure is much less than atmospheric pressure. The word comes from the Latin term for "empty". A perfect vacuum would be one with no particles in it at all, which is impossible to achieve in...

 if it does not contain any matter
Matter
Matter is a general term for the substance of which all physical objects consist. Typically, matter includes atoms and other particles which have mass. A common way of defining matter is as anything that has mass and occupies volume...

, though it can contain physical fields
Field (physics)
In physics, a field is a physical quantity associated with each point of spacetime. A field can be classified as a scalar field, a vector field, a spinor field, or a tensor field according to whether the value of the field at each point is a scalar, a vector, a spinor or, more generally, a tensor,...

. In fact, it is practically impossible to construct a region of space that contains no matter or fields, since gravity
Gravitation
Gravitation, or gravity, is a natural phenomenon by which physical bodies attract with a force proportional to their mass. Gravitation is most familiar as the agent that gives weight to objects with mass and causes them to fall to the ground when dropped...

 cannot be blocked and all objects at a non-zero temperature radiate electromagnetically
Electromagnetic radiation
Electromagnetic radiation is a form of energy that exhibits wave-like behavior as it travels through space...

. However, even if such a region existed, it could still not be referred to as "nothing", since it has properties and a measurable existence as part of the quantum-mechanical vacuum. Where there is supposedly empty space there are constant quantum fluctuations with particles continually popping into and out of existence.

See also

  • Absolute zero
    Absolute zero
    Absolute zero is the theoretical temperature at which entropy reaches its minimum value. The laws of thermodynamics state that absolute zero cannot be reached using only thermodynamic means....

  • Action at a distance
    Action at a distance (physics)
    In physics, action at a distance is the interaction of two objects which are separated in space with no known mediator of the interaction. This term was used most often in the context of early theories of gravity and electromagnetism to describe how an object responds to the influence of distant...

  • Dark matter
    Dark matter
    In astronomy and cosmology, dark matter is matter that neither emits nor scatters light or other electromagnetic radiation, and so cannot be directly detected via optical or radio astronomy...

  • Ex nihilo
    Ex nihilo
    Ex nihilo is a Latin phrase meaning "out of nothing". It often appears in conjunction with the concept of creation, as in creatio ex nihilo, meaning "creation out of nothing"—chiefly in philosophical or theological contexts, but also occurs in other fields.In theology, the common phrase creatio ex...

  • Empty
  • False vacuum
    False vacuum
    In quantum field theory, a false vacuum is a metastable sector of space that appears to be a perturbative vacuum, but is unstable due to instanton effects that may tunnel to a lower energy state. This tunneling can be caused by quantum fluctuations or the creation of high-energy particles...

  • Field
  • Nada
  • Mu
    Mu (negative)
    or Wu , is a word which has been translated variously as "not", "nothing", "without", "nothingness", "non existent", "non being", or evocatively simply as "no thing"...

  • Negation (linguistics)

  • Negative theology
    Negative theology
    Apophatic theology —also known as negative theology or via negativa —is a theology that attempts to describe God, the Divine Good, by negation, to speak only in terms of what may not be said about the perfect goodness that is God...

  • Nihilism
    Nihilism
    Nihilism is the philosophical doctrine suggesting the negation of one or more putatively meaningful aspects of life. Most commonly, nihilism is presented in the form of existential nihilism which argues that life is without objective meaning, purpose, or intrinsic value...

  • No
    Yes and no
    Yes and no are two words for expressing affirmatives and negatives respectively in English . Early Middle English had a four-form system, but Modern English has reduced this to a two-form system consisting of 'yes' and 'no'. Some languages do not answer yes-no questions with single words meaning...

  • Nobody
  • Nothing comes from nothing
    Nothing comes from nothing
    Nothing comes from nothing is a philosophical expression of a thesis first argued by Parmenides. It is associated with ancient Greek cosmology, such as presented not just in the opus of Homer and Hesiod, but also in virtually every philosophical system – there is no time interval in which a...

  • Nowhere
  • Something
  • Vacuum
    Vacuum
    In everyday usage, vacuum is a volume of space that is essentially empty of matter, such that its gaseous pressure is much less than atmospheric pressure. The word comes from the Latin term for "empty". A perfect vacuum would be one with no particles in it at all, which is impossible to achieve in...

  • Vacuous truth
    Vacuous truth
    A vacuous truth is a truth that is devoid of content because it asserts something about all members of a class that is empty or because it says "If A then B" when in fact A is inherently false. For example, the statement "all cell phones in the room are turned off" may be true...

  • Void
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