infix ∌

Documentation for infix assembled from the following types:

language documentation Sets, bags, and mixes

From Sets, bags, and mixes

(Sets, bags, and mixes) infix ∌

only sub infix:<>($a$b --> Bool)

Does not contain operator.

Equivalent to !(cont), i.e., returns True if $a does not contain $b, at codepoint U+220C (DOES NOT CONTAIN AS MEMBER).

say (123).Set !(cont) 2;             # OUTPUT: «False␤» 
say (123).Set !(cont) 4;             # OUTPUT: «True␤»