ML’s Composite Types

val mytuple = (26, "Oct." , 2001);

val mytuple = (26, "Oct." , 2001) : int * string * int

Each component can have a different type.

Lists:

[1, 2, 3] ;

val it = [1, 2, 3] : int list

["nice"];

val it = ["nice"] : string list

All components must have the same type.