# superset?
Check if one set is a superset of another.
## Syntax
[superset? $a $b]
## Examples
[superset? ^{ 1 2 3 } ^{ 1 2 }] # true
[superset? ^{ 1 2 } ^{ 1 2 3 }] # false
[superset? ^{ 1 2 } ^{ 1 2 }] # true
## Returns
Boolean — true if every element of `$b` is in `$a`.
## See Also
`subset?`, `union`, `intersection`, `difference`