ContainsAll

ContainsAll[list1, list2] yields True if list1 contains all of the elements of list2.

ContainsAll[list2] is an operator form that yields True when the object to which it is applied contains all of the elements of list2.

Examples

Check if list contains all elements:

ContainsAll[{1, 2, 3, 4, 5}, {2, 4}]
(* True *)

Missing elements:

ContainsAll[{1, 2, 3}, {2, 4}]
(* False *)

Operator form:

ContainsAll[{a, b}][{a, b, c, d}]
(* True *)

Please visit the official Wolfram Language Reference for more details.