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Identity: Difference between revisions
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Disambiguate with Identity element
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:''This page is about the class of primitive functions. For the result of an empty reduction, see [[Identity element]].'' | |||
An '''Identity function''', or '''tack function''', is one of the three [[primitive function]]s which returns one of its [[argument]]s with no modification: | An '''Identity function''', or '''tack function''', is one of the three [[primitive function]]s which returns one of its [[argument]]s with no modification: | ||
* '''Identity''', '''Same''', or '''Pass''' (<source lang=apl inline>⊣</source> or <source lang=apl inline>⊢</source>) is [[monadic]] and returns its only argument. | * '''Identity''', '''Same''', or '''Pass''' (<source lang=apl inline>⊣</source> or <source lang=apl inline>⊢</source>) is [[monadic]] and returns its only argument. | ||