notin

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notin
Category relational
Syntax infix
Compatibility
CIMS SETL yes
SETL-S yes
SETL2 yes
GNU SETL yes

Contents

Purpose

Test for non-membership of a set or tuple

Synopsis

 x notin s

Description

Returns false if

  1. x is an element of the tuple s,
  2. x is a member of the set s or
  3. x is a substring of the string s.

Otherwise returns true.

Examples

  1. 1 notin {1, 2, 3}

    Result: false 

  2. 4 notin {1, 2, 3}

    Result: true 

  3. 4 notin [1, om, 3]

    Result: true 

  4. om notin [1, om, 3]

    Result: false

See also

Retrieved from "http://www.setl-lang.org/wiki/index.php/Notin"