Abstraction in the context of Map-territory relation

Modernism was an early 20th-century movement in literature, visual arts, performing arts, and music that emphasized experimentation, abstraction, and subjective experience. Philosophy, politics, architecture, and social issues were all aspects of this movement. Modernism centered around beliefs in a "growing alienation" from prevailing "morality, optimism, and convention" and a desire to change how "human beings in a society interact and live together".

The modernist movement emerged during the late 19th century in response to significant changes in Western culture, including secularization and the growing influence of science. It is characterized by a self-conscious rejection of tradition and the search for newer means of cultural expression. Modernism was influenced by widespread technological innovation, industrialization, and urbanization, as well as the cultural and geopolitical shifts that occurred after World War I. Artistic movements and techniques associated with modernism include abstract art, literary stream-of-consciousness, cinematic montage, musical atonality and twelve-tonality, modern dance, modernist architecture, and urban planning.

The human brain is the central organ of the nervous system, and with the spinal cord, comprises the central nervous system. It consists of the cerebrum, the brainstem and the cerebellum. The brain controls most of the activities of the body, processing, integrating, and coordinating the information it receives from the sensory nervous system. The brain integrates sensory information and coordinates instructions sent to the rest of the body.

The cerebrum, the largest part of the human brain, consists of two cerebral hemispheres. Each hemisphere has an inner core composed of white matter, and an outer surface – the cerebral cortex – composed of grey matter. The cortex has an outer layer, the neocortex, and an inner allocortex. The neocortex is made up of six neuronal layers, while the allocortex has three or four. Each hemisphere is divided into four lobes – the frontal, parietal, temporal, and occipital lobes. The frontal lobe is associated with executive functions including self-control, planning, reasoning, and abstract thought, while the occipital lobe is dedicated to vision. Within each lobe, cortical areas are associated with specific functions, such as the sensory, motor, and association regions. Although the left and right hemispheres are broadly similar in shape and function, some functions are associated with one side, such as language in the left and visual-spatial ability in the right. The hemispheres are connected by commissural nerve tracts, the largest being the corpus callosum.

A mental representation (or cognitive representation), in philosophy of mind, cognitive psychology, neuroscience, and cognitive science, is a hypothetical internal cognitive symbol that represents external reality or its abstractions.

Mental representation is the mental imagery of things that are not actually present to the senses. In contemporary philosophy, specifically in fields of metaphysics such as philosophy of mind and ontology, a mental representation is one of the prevailing ways of explaining and describing the nature of ideas and concepts.

A concept is an abstract idea that serves as a foundation for more concrete principles, thoughts, and beliefs.Concepts play an important role in all aspects of cognition. As such, concepts are studied within such disciplines as linguistics, psychology, and philosophy, and these disciplines are interested in the logical and psychological structure of concepts, and how they are put together to form thoughts and sentences. The study of concepts has served as an important flagship of an emerging interdisciplinary approach, cognitive science.

In contemporary philosophy, three understandings of a concept prevail:

Information is an abstract concept that refers to something which has the power to inform. At the most fundamental level, it pertains to the interpretation (perhaps formally) of that which may be sensed, or their abstractions. Any natural process that is not completely random and any observable pattern in any medium can be said to convey some amount of information. Whereas digital signals and other data use discrete signs to convey information, other phenomena and artifacts such as analogue signals, poems, pictures, music or other sounds, and currents convey information in a more continuous form. Information is not knowledge itself, but the meaning that may be derived from a representation through interpretation.

The concept of information is relevant or connected to various concepts, including constraint, communication, control, data, form, education, knowledge, meaning, understanding, mental stimuli, pattern, perception, proposition, representation, and entropy.

Intellect is a faculty of the human mind that enables reasoning, abstraction, conceptualization, and judgment. It enables the discernment of truth and falsehood, as well as higher-order thinking beyond immediate perception. Intellect is distinct from intelligence, which refers to the general ability to learn, adapt, and solve problems, whereas intellect concerns the application of reason to abstract or philosophical thought.

In philosophy, intellect (Ancient Greek: dianoia) has often been contrasted with nous, a term referring to the faculty of direct intuitive knowledge. While intellect engages in discursive reasoning, breaking down concepts into logical sequences, nous is considered a higher cognitive faculty that allows for direct perception of truth, especially in Platonism and Neoplatonism. Aristotle distinguished between the active intellect (intellectus agens), which abstracts universal concepts, and the passive intellect, which receives sensory input.

Causality is an influence by which one event, process, state, or object (a cause) contributes to the production of another event, process, state, or object (an effect) where the cause is at least partly responsible for the effect, and the effect is at least partly dependent on the cause. The cause of something may also be described as the reason for the event or process.

In general, a process can have multiple causes, which are also said to be causal factors for it, and all lie in its past. An effect can in turn be a cause of, or causal factor for, many other effects, which all lie in its future. Thus, the distinction between cause and effect either follows from or else provides the distinction between past and future. While the former viewpoint is more prevalent in physics, some writers have held that causality is metaphysically prior to notions of time and space. Causality is an abstraction that indicates how the world progresses. As such, it is a basic concept, and one might expect it to be more apt as an explanation of other concepts of progression than something to be explained by yet more fundamental ideas. The concept is like those of agency and efficacy. For this reason, a leap of intuition may be needed to grasp it. Accordingly, causality is implicit in the structure of ordinary language, as well as explicit in the language of scientific causal notation.

An entity is something that exists as itself. It does not need to be of material existence. In particular, abstractions and legal fictions are usually regarded as entities. In general, there is also no presumption that an entity is animate, or present. The verb tense of this form is to 'entitize' - meaning to convert into an entity; to perceive as tangible or alive.

The term is broad in scope and may refer to animals; natural features such as mountains; inanimate objects such as tables; numbers or sets as symbols written on a paper; human contrivances such as laws, corporations and academic disciplines; or supernatural beings such as gods and spirits.

In general, an imaginary line is usually any sort of geometric line (more generally, curves) that has only an abstract definition and does not physically exist. They are often used to properly identify places on a map.

Some outside geography do exist. A centerline is a nautical term for a line down the center of a vessel lengthwise.

Behavioral modernity is a suite of behavioral and cognitive traits believed to distinguish current Homo sapiens from other anatomically modern humans, hominins, and primates. Most scholars agree that modern human behavior can be characterized by abstract thinking, planning depth, symbolic behavior (e.g., art, ornamentation), music and dance, exploitation of large game, and blade technologies, among others.

Underlying these behaviors and technological innovations are cognitive and cultural foundations that have been documented experimentally and ethnographically by evolutionary and cultural anthropologists. These human universal patterns include cumulative cultural adaptation, social norms, language, and extensive help and cooperation beyond close kin.

In astronomy and navigation, the celestial sphere is an abstract sphere that has an arbitrarily large radius and is concentric to Earth. All objects in the sky can be conceived as being projected upon the inner surface of the celestial sphere, which may be centered on Earth or the observer. If centered on the observer, half of the sphere would resemble a hemispherical screen over the observing location.

The celestial sphere is a conceptual tool used in spherical astronomy to specify the position of an object in the sky without consideration of its linear distance from the observer. The celestial equator divides the celestial sphere into northern and southern hemispheres.

Modern art includes artistic work produced during the period extending roughly from the 1860s to the 1970s, and denotes the styles and philosophies of the art produced during that era. The term is usually associated with art in which the traditions of the past have been thrown aside in a spirit of experimentation. Modern artists experimented with new ways of seeing and with fresh ideas about the nature of materials and functions of art. A tendency away from the narrative, which was characteristic of the traditional arts, toward abstraction is characteristic of much modern art. More recent artistic production is often called contemporary art or Postmodern art.

Modern art begins with the post-impressionist painters like Vincent van Gogh, Paul Cézanne, Paul Gauguin, Georges Seurat and Henri de Toulouse-Lautrec. These artists were essential to modern art's development. At the beginning of the 20th century Henri Matisse and several other young artists including the pre-cubists Georges Braque, André Derain, Raoul Dufy, Jean Metzinger and Maurice de Vlaminck revolutionized the Paris art world with "wild," multi-colored, expressive landscapes and figure paintings that the critics called Fauvism. Matisse's two versions of The Dance signified a key point in his career and the development of modern painting. It reflected Matisse's incipient fascination with primitive art: the intense warm color of the figures against the cool blue-green background and the rhythmical succession of the dancing nudes convey the feelings of emotional liberation and hedonism.

A generalization is a form of abstraction whereby common properties of specific instances are formulated as general concepts or claims. Generalizations posit the existence of a domain or set of elements, as well as one or more common characteristics shared by those elements (thus creating a conceptual model). As such, they are the essential basis of all valid deductive inferences (particularly in logic, mathematics and science), where the process of verification is necessary to determine whether a generalization holds true for any given situation.

Generalization can also be used to refer to the process of identifying the parts of a whole, as belonging to the whole. The parts, which might be unrelated when left on their own, may be brought together as a group, hence belonging to the whole by establishing a common relation between them.

Theoretical physics is a branch of physics that employs mathematical models and abstractions of physical objects and systems to rationalize, explain, and predict natural phenomena. This is in contrast to experimental physics, which uses experimental tools to probe these phenomena.

The advancement of science generally depends on the interplay between experimental studies and theory. In some cases, theoretical physics adheres to standards of mathematical rigour while giving little weight to experiments and observations. For example, while developing special relativity, Albert Einstein was concerned with the Lorentz transformation which left Maxwell's equations invariant, but was apparently uninterested in the Michelson–Morley experiment on Earth's drift through a luminiferous aether. Conversely, Einstein was awarded the Nobel Prize for explaining the photoelectric effect, previously an experimental result lacking a theoretical formulation.

Theoretical computer science is a subfield of computer science and mathematics that focuses on the abstract and mathematical foundations of computation.

It is difficult to circumscribe the theoretical areas precisely. The ACM's Special Interest Group on Algorithms and Computation Theory (SIGACT) provides the following description:

Personification is the representation of a thing or abstraction as a person. In the arts, many things are commonly personified, including: places, especially cities, countries, and continents; elements of the natural world, such as trees, the four seasons, the "four elements", the four cardinal winds, and the five senses; moral abstractions, especially the four cardinal virtues and seven deadly sins; the nine Muses; and death.

In many polytheistic early religions, deities had a strong element of personification, suggested by descriptions such as "god of". In ancient Greek religion, and the related ancient Roman religion, this was perhaps especially strong, in particular among the minor deities. Many such deities, such as the tyches or tutelary deities for major cities, survived the arrival of Christianity, now as symbolic personifications stripped of religious significance. An exception was the winged goddess of victory, Victoria/Nike, who developed into the visualisation of the Christian angel.

Intelligence has been defined in many ways: the capacity for abstraction, logic, understanding, self-awareness, learning, emotional knowledge, reasoning, planning, creativity, critical thinking, and problem-solving. It can be described as the ability to perceive or infer information and to retain it as knowledge to be applied to adaptive behaviors within an environment or context.

The term rose to prominence during the early 1900s. Most psychologists believe that intelligence can be divided into various domains or competencies.

The primordial deities of Greek mythology are the first generation of gods and goddesses. These deities represented the fundamental forces and physical foundations of the world and were generally not actively worshipped, as they, for the most part, were not given human characteristics; they were instead personifications of places or abstract concepts.

Hesiod, in his Theogony, considers the first beings (after Chaos) to be Erebus, Gaia, Tartarus, Eros and Nyx. Gaia and Uranus, whose severed genitals created the goddess Aphrodite from sea foam, in turn gave birth to the Titans, and the Cyclopes. The Titans Cronus and Rhea then gave birth to the generation of the Olympians: Zeus, Poseidon, Hades, Hestia, Hera and Demeter. They overthrew the Titans, with the reign of Zeus marking the end of the period of warfare and usurpation among the gods.