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For example, it is difficult to agree to whether concepts like God, the number three, and goodness are real, abstract, or both. An approach to resolving such difficulty is to use predicates as a general term for whether things are variously real, abstract, concrete, or of a particular property (e.g., good ).
The informative abstract, also known as the complete abstract, is a compendious summary of a paper's substance and its background, purpose, methodology, results, and conclusion. [ 23 ] [ 24 ] Usually between 100 and 200 words, the informative abstract summarizes the paper's structure, its major topics and key points. [ 23 ]
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.
For example, one could define an abstract data type called lookup table which uniquely associates keys with values, and in which values may be retrieved by specifying their corresponding keys. Such a lookup table may be implemented in various ways: as a hash table , a binary search tree , or even a simple linear list of (key:value) pairs.
For example, geometry has its origins in the calculation of distances and areas in the real world, and algebra started with methods of solving problems in arithmetic. Abstraction is an ongoing process in mathematics and the historical development of many mathematical topics exhibits a progression from the concrete to the abstract.
A kind of abstraction commonly considered in linguistics is the phoneme, which abstracts speech sounds in such a way as to neglect details that cannot serve to differentiate meaning. Other analogous kinds of abstractions (sometimes called " emic units ") include morphemes , graphemes and lexemes .
Abstract may refer to: "Abstract", a 2017 episode of the animated television series Adventure Time; Abstract, 1962 album by Joe Harriott; Abstract algebra, sets with specific operations acting on their elements; Abstract of title, a summary of the documents affecting the title to a parcel of land; Abstract (law), a summary of a legal document
An example of a mental construct is the idea of class, or the distinguishing of two groups based on their income, culture, power, or some other defining characteristic(s). An operational definition specifies concrete, replicable procedures that reliably produce a differentiated, measurable outcome. Similarly, concepts can remain abstract or can ...