partial function (Q1756942)

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description: function whose actual domain of definition may be smaller than its input set
aliases: univalent relation; right-unique relation; right-definite relation; right unique relation; right definite relation; partial mapping

subclass of

binary relation (Q130901) – set of ordered pairs with first element in A and second element in B
function (Q11348) – association of a single output to each input
mathematical object (Q246672) – abstract object in mathematics

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