This is an automatically generated page and cannot be edited directly. Text in Composite pages, (URLs starting with 'routine' or 'syntax') can be edited by clicking on the link labeled 'in context', and editing the text there.

Exit this popup by pressing <Escape>, or clicking on X or on the background.

(elem), infix ∈
Combined from primary sources listed below.

In Sets, bags, and mixes§

See primary documentation in context for infix (elem), infix ∈

Returns True if $a is an element of $b, else False. More information, Wikipedia definition.

In Operators§

See primary documentation in context for infix (elem), infix ∈ 

multi infix:<(elem)>($a,$b --> Bool:D)

Membership operator.

Returns True if $a is an element of $b.

say 2 (elem) (1, 2, 3); # OUTPUT: «True␤»
say 4 ∈ (1, 2, 3);      # OUTPUT: «False␤»

Since release 2020.05, ∊ is an alias for this operator.