partial function

EnglishEdit

NounEdit

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partial function (plural partial functions)

1. (mathematics) A function whose domain is a subset of some set

AntonymsEdit

• (mathematics: function whose domain is a subset of some set): total function

Usage notesEdit

This is not a formal term, but a metamathematical description which only assumes concrete meaning in context. For example, in computability theory, a partial function is a function whose domain is a subset of ${\N}^k$ for some k, but in other fields the term has other meanings.