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Computing (FOLDOC) dictionary (also found in English - Vietnamese, English - English (Wordnet), )
isomorphism
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mathematics A bijective map between two objects which
preserves, in both directions, any structure under
consideration. Thus a `group isomorphism' preserves group
structure; an order isomorphism (between posets) preserves
the order relation, and so on. Usually it is clear from
context what sort of isomorphism is intended.