Paramorphism

Paramorphism

A paramorphism (from Greek "παρα", meaning "close together") is an extension of the concept of catamorphism to deal with a form which “eats its argument and keeps it too” [Phil Wadler. "Views: A way for pattern matching to cohabit with data abstraction." Technical Report 34, Programming Methodology Group, University of Göteburg and Chalmers University of Technology, March 1987.] , as exemplified by the factorial function.

References

* Erik Meijer, Maarten Fokkinga, and Ross Paterson. "Functional Programming with Bananas, Lenses, Envelopes, and Barbed Wire" [http://research.microsoft.com/~emeijer/Papers/fpca91.pdf]

ee also

*Anamorphism
*Apomorphism
*Catamorphism
*Hylomorphism


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Look at other dictionaries:

  • Paramorphism — Par a*mor phism, n. (Min.) The change of one mineral species to another, so as to involve a change in physical characters without alteration of chemical composition. [1913 Webster] …   The Collaborative International Dictionary of English

  • paramorphism — [par΄ə môr′fiz΄əm] n. [ PARA 1 + MORPH + ISM] the process by which the crystal structure of a mineral changes without an alteration in the chemical composition or external form of the mineral paramorphic adj. paramorphous …   English World dictionary

  • paramorphism — /par euh mawr fiz euhm/, n. 1. the process by which a paramorph is formed. 2. the state of being a paramorph. [1865 70; PARA 1 + MORPHISM] * * * …   Universalium

  • paramorphism — noun a change in the physical structure of a mineral without any chemical change See Also: paramorphic …   Wiktionary

  • paramorphism — para·mor·phism …   English syllables

  • paramorphism — /pærəˈmɔfɪzəm/ (say paruh mawfizuhm) noun 1. the process by which a paramorph is formed. 2. the state of being a paramorph …  

  • paramorphism — |parə|mȯrˌfizəm noun ( s) : the property of changing from one mineral species to another (as from aragonite to calcite) by a change in internal structure and physical characters but not in chemical composition …   Useful english dictionary

  • Apomorphism — An apomorphism (from απο Greek for apart ) is the categorical dual of a paramorphism. Whereas a paramorphism models primitive recursion over an inductive data type, an apomorphism models primitive corecursion over a coinductive data… …   Wikipedia

  • Paramorphous — Par a*mor phous, a. (Min.) Relating to paramorphism; exhibiting paramorphism. [1913 Webster] …   The Collaborative International Dictionary of English

  • Paramorphisme — Traduction à relire Paramorphism → Paramorphis …   Wikipédia en Français

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