Mapping

The word mapping has several senses:

• In mathematics and related technical fields, it is some kind of function: see map (mathematics).
• In formal logic, it is sometimes used for a functional predicate.
• In computer science, it is usually a computable function, a procedure, or a table, e.g. relating a key to its value in an associative array.
• In cognitive psychology, it is the relationship between a source domain and target domain, typically reflecting a conceptual metaphor.

See also: map, cartography

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