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Doing so would make the concepts "cat" and "telephone" abstract ideas since despite their varying appearances, a particular cat or a particular telephone is an instance of the concept "cat" or the concept "telephone". Although the concepts "cat" and "telephone" are abstractions, they are not abstract in the sense of the objects in graph 1 below.
In philosophy and the arts, a fundamental distinction exists between abstract and concrete entities. While there is no universally accepted definition, common examples illustrate the difference: numbers, sets, and ideas are typically classified as abstract objects, whereas plants, dogs, and planets are considered concrete objects.
In this view, concepts are abstract objects of a category out of a human's mind rather than some mental representations. [8] There is debate as to the relationship between concepts and natural language. [5] However, it is necessary at least to begin by understanding that the concept "dog" is philosophically distinct from the things in the world ...
A broad-concept article is an article that addresses a concept that may be difficult to write about because it is abstract, or because it covers the sometimes-amorphous relationship between a wide range of related concepts. Due to the difficulty of explaining this relationship (and the comparative ease of merely listing articles to which the ...
Object abstraction, or simply abstraction, is a concept wherein terms for objects become used for more abstract concepts, which in some languages develop into further abstractions such as verbs and grammatical words (grammaticalisation). Abstraction is common in human language, though it manifests in different ways for different languages.
[A] The abstract concepts can range "from numbers, to emotions, and from social roles, to mental states ..". [ A ] These abstract concepts are themselves grounded in multiple systems. [ A ] [ a ] In psychology , a conceptual system is an individual's mental model of the world; in cognitive science the model is gradually diffused to the ...
While within concrete concepts there is still a level of abstractness, concrete and abstract concepts can be seen on a scale. Some ideas like chair and dog are more cut and dry in their perceptions but concepts like cold and fantasy can be seen in a more obscure way. Examples of abstract concept learning are topics like religion and ethics.
An abstract structure has a richer structure than a concept or an idea. An abstract structure must include precise rules of behaviour which can be used to determine whether a candidate implementation actually matches the abstract structure in question, and it must be free from contradictions .