# Derivation

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**Derivation** may refer to:

## Language

- [Morphological derivation](/source/Morphological_derivation), a word-formation process
- [Parse tree](/source/Parse_tree) or concrete syntax tree, representing a string's syntax in formal grammars

## Law

- [Derivative work](/source/Derivative_work), in copyright law
- [Derivation proceeding](/source/Derivation_proceeding), a proceeding in United States patent law

## Music

- The creation of a [derived row](/source/Derived_row), in the twelve-tone musical technique

## Science and mathematics

- [Derivation (differential algebra)](/source/Derivation_(differential_algebra)), a unary function satisfying the Leibniz product law
- [Formal proof](/source/Formal_proof) or derivation, a sequence of sentences each of which is an axiom or follows from the preceding sentences in the sequence by a rule of inference
- An after-the-fact justification for an action, in the work of sociologist [Vilfredo Pareto](/source/Vilfredo_Pareto)

## See also

- [Derive (disambiguation)](/source/Derive_(disambiguation)), for meanings of "derive" and "derived"
- [Derivative](/source/Derivative), in calculus
- [Derivative (disambiguation)](/source/Derivative_(disambiguation))

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