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.

(<=), infix ⊆
Combined from primary sources listed below.

In Operators§

See primary documentation in context for infix (<=), infix ⊆. 

multi infix:«(<=)»($a,$b --> Bool:D)

Subset of or equal to operator.

Returns True if $a is a subset of $b, i.e., that all the elements of $a are elements of $b but $a is a smaller or equal sized set than $b.

say (1,2,3) (<=) (2,3,1); # OUTPUT: «True␤»
say (2,3) (<=) (2,3,1);   # OUTPUT: «True␤»
say 4 ⊆ (1,2,3);          # OUTPUT: «False␤»

In Sets, bags, and mixes§

See primary documentation in context for infix (<=), infix ⊆.

Returns True if $a is a subset or is equal to $b, else False. More information, Wikipedia definition.