SWI-Prolog -- delete/3

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Predicate delete/3

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Availability::- use_module(library(lists)).(can be autoloaded)

[det]delete(+List1, @Elem, -List2)

Delete matching elements from a list. True when List2 is a list with all elements from List1 except for those that unify with Elem. Matching Elem with elements of List1 is uses \+ Elem \= H, which implies that Elem is not changed.

See also: select/3, subtract/3.
deprecated: There are too many ways in which one might want to delete elements from a list to justify the name. Think of matching (= vs. ==), delete first/all, be deterministic or not.